Episode 3 Gardeners' World


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and to what is, I think, the most thrilling weekend of the whole year.

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It's not because there's any particularly special event,

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but because we get this gift of an hour of extra light

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And as the days get longer, of course,

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the garden is responding by breaking into flower at every turn.

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Here in the copse, the primroses, like little stars,

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they're shining and growing in amongst the increasing green.

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And it's this that makes this such a magical time of year.

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Frances Tophill continues her Caribbean experience

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by visiting two gardens in Barbados, packed with colour.

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And Nick Bailey delves into the fascinating world of lichen.

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It is time to start planting the new area

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that is replacing where the box balls were,

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which have box hedges all the way round.

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And I want to enclose this area, but rather than hedge it,

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I'm going to continue the pleached limes.

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Pleaching is a method of training trees

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so that the branches grow sideways just in two dimensions

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to form a natural structure or hedge,

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To do this, most of the lateral branches are removed

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and there are a number of trees you can use,

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including hornbeam, apple or pear, but lime is the most common.

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I want to continue the line of existing limes

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into this new area, so I'm marking out the plot.

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whether it's bare root or in a container,

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what you're looking to dig is a fairly shallow but wide hole.

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It's a mistake to enrich the soil too much, because ultimately,

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you want your tree to grow out into whatever is there.

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And if you make a planting pocket full of the best compost,

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the roots will just stay in that planting pocket.

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Now, what I have here is Tilia cordata, small-leaved lime.

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and the advantage of bare root is that you have a wider choice,

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But we're getting right to the end of the bare root season.

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In fact, if you want to buy bare root trees,

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I need a structure to support the pleaching.

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and chestnut is perfect for any tree support or stake

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that's going to be in the ground for a long time,

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The reason why you plant bare root plants between October and March

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and it's not demanding anything of the roots.

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So when you plant it out, the roots can start to grow

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and that will ask the roots to do a lot of work.

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Containerised plants, you can plant at any time of year.

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Right. Now, this is the critical thing.

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Because the roots drying out is what we're worried about.

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Once you've got two trees in the ground,

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And remember that pleaching is simply a means of connecting

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or you can have it as a hedge up above ground,

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and it's a brilliant way of doing two things,

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one of getting trees into a small space, and two,

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of creating structure, but this, however modestly you do it,

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is part of a long, and I think glorious tradition

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Now, let's go from glorious European gardening

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because Frances Tophill spent her winter volunteering

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And this week, we join her as she's out and about

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Barbados. A beautiful Caribbean island.

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With the perfect climate for wonderful tropical plants...

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..and some very passionate gardeners.

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I've been on Barbados for a few weeks now,

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and I'm really getting to know and love this beautiful place.

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While I was out exploring the island,

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I came across this verge of amazing blue flowers,

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which led onto a colourful hedge, so I followed the trail,

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and it brought me to an incredible looking garden.

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I couldn't resist, so I knocked on the door, and Merle, the owner,

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has invited me back to have a look around.

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Hello! Hi! Hello. Good afternoon. I've come to see the garden.

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40 years? Yes. So are there any favourite plants that you have here?

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In the UK, they would grow as bedding and they would die

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and she's filled her garden with plants that she's grown herself.

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So in the morning, it's white? White.

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And when is it red, in the evening? Yes. On one day? Yes, one day.

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That's amazing. So you're taking cuttings,

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basically, and you call that hatching?

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Propagating, yes, yes. I like "hatching" better.

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So that there has been growing just for one week

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and it's got a root that size? Yes, yes. That's amazing.

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So many plants. Oh, I love the poinsettias.

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The poinsettia. Is that grown for Christmas here as were?

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See, we have them in England. And they're this big,

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and then we throw them away! THEY LAUGH

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the rest of Merle's garden is full of tropical plants

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that most of us in the UK only ever see in florists, or grow indoors.

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During my time on Barbados, I've got a real sense that, like Merle,

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the Barbadians absolutely love their plants and their gardens.

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In the urban sprawl of Bridgetown is a suburb

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Barbados is famous for its legends of cricket

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and its prowess on the world athletic stage.

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But here on this suburban estate, there's another kind of

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world champion, and the clue is in the street name.

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Michael White grows thousands of orchids in his small back garden.

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And he has travelled the world showing them.

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So what is it about orchids that you love? Why orchids?

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The flowering aspect, the variation of colour, sizes.

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It's beautiful, and not only that, they de-stress you.

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These are referred to as semi-terete Vandas.

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As you can see, the leaves are a little closed in,

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and as we would say in the orchid world,

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the narrower the leaf, the more sun it can take.

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So these ones are outside for that reason?

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Yes, these are outside, the orchids. And how many do you have?

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Over 2,000. Wow. That's a real collection!

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Michael grows plenty of beautiful orchids that flourish

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in the blazing tropical sun, but some do need a little protection.

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They're crammed in, they? You have a lot!

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You can see the shade cloth to reduce the amount of light

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And there's such a variety of different coloured flowers

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And these ones, I love these, with the cupped petals.

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That's a nice colour. I love it also.

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Do you think it would be possible for UK growers to grow these?

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Yes, they can be grown, but under special conditions.

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and you have controlled temperatures in there,

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heaters that you can control the temperature.

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it's not growing in any sort of medium.

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No potting mix, nothing. It's just bare roots.

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So you need to spray your plants at least twice a day.

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And a quick way of knowing when you've thoroughly soaked your plant,

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this grey silvery colour of the root should turn green.

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You will find that you have more colour,

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Thank you so much for showing me. Oh, you're welcome.

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There is no plant more exotic than an orchid.

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It's lovely to see them growing in that environment.

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At this time of year, our daffodils and primulas and fritillaries

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Tomatoes are the most popular vegetable,

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albeit the fact they're a berry, that we grow,

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I don't here at Longmeadow because we get terrible blight.

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certainly now is the time to sow them.

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I've got some that I've sowed earlier.

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These are now ready for pricking out.

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But that's a pretty good example of how thick you need to sow them.

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You can use any compost and tomatoes will germinate.

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Seed compost has less nutrients and is slightly finer

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and rather easier especially for small seeds to grow in.

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But it's not something to get hung up about.

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A peat-free general-purpose compost will do the job perfectly well.

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and I'm going to grow Gardener's Delight

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and sprinkle them thinly on the surface.

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Quite tricky to sow these individually and avoid clumps

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but I don't think that matters terribly

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because you can thin them out when they're growing.

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And then I just press them in very lightly

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so they're making good contact with the surface.

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And then cover them over. You can cover them with grit,

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you can cover them with vermiculite or, easiest of all,

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is just to sieve a little bit of potting compost over the top.

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Gardener's Delight is a good doer because it's delicious,

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they make a lovely sauce, they're good roasted.

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And however you eat them, they explode with flavour.

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They're a really good, tasty tomato.

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to get them to germinate, they will need some heat.

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A windowsill above a radiator is fine.

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A porch, or if you've got a greenhouse with a heated mat,

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And then they will germinate in about ten days' to two weeks' time.

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Now I guess most of you are aware by now this is our jubilee year

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and one of the ways that we're celebrating those 50 years

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of Gardeners' World is for each of us presenters to make the case

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for the one plant that we think has had the most impact,

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not necessarily our favourite but the one that we feel

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has changed and affected the way that we have all gardened

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And now, this week, it's the turn of Rachel De Thame to make her case.

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It's also known as the Columbine or Granny's Bonnets.

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It's a very popular perennial, and when it first emerges in spring,

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you get this beautiful, fresh, rather frothy foliage at the base.

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It sends up long stems with lovely, spurred flowers

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in soft pastel shades of pink and mauve,

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with white and then darker purples as well.

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And they're rather promiscuous, so you never know quite

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what colour you're going to get when they self-seed.

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Now, I've chosen it because it represents a whole palette

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of plants that love shady conditions,

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and I think in the last 50 years we've really come on

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in terms of putting the right plant in the right place.

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So that's why I've chosen as my golden jubilee plant

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the Aquilegia vulgaris because I think it says that in a nutshell.

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Rachel has chosen a plant that thrives specifically in shady areas.

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Today I'm planting a clematis that also loves these shady conditions.

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I want to start planting up this wall.

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This wall, which is east-facing, does get some sun but it's cold.

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So these clematis have adapted to that. They're Clematis alpina.

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The first is one called Lemon Beauty.

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It will flower from April time to about the beginning of May.

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It's a spring flower and therefore it's a group one clematis

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which means that it flowers on last year's growth.

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So it should only be pruned very lightly if at all,

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and if you're going to do that, you'd prune it in spring.

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When you're growing any climber up a wall,

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get it well away from it, and then you can angle it back in.

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That does two things. It allows a decent root spread,

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and also ensures that there's some moisture.

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And the other one I'm going to plant is called White Columbine.

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This is also an alpina, lovely white flowers,

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and I'm going to pull this over on to this end about the same distance.

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And later on I'm going to plant a rose in the middle.

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A rose that will enjoy a shady wall but that's for another day.

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Now, the planting of any clematis is actually quite specific

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In essence what I'm doing is digging out a sump.

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And I'm going to backfill it with lots of compost.

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That's not so much as a feed but as a kind of reservoir

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so these deep roots can get down and if it's very dry

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they will be able to find some moisture.

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which is a fungus that helps make a connection

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between the roots of the plant and nutrients and moisture in the soil.

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Now simply backfill around it, like that.

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Firm it in gently, but this is not going to rock about very much.

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It'll need a cane taking it to the wall

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and obviously a support once it's on the wall.

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Clematis are not ideal on wires because they tend to flop over it.

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So either a trellis on the wall or some netting of some kind

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But in the end, like everything else,

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it's what's convenient and what you've got.

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These clematis should grow strongly this year

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and on that growth will develop flowers for next spring.

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they will cover up this part of the wall.

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Now, underneath them what is there already are some lichen.

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A lot of people are slightly confused whether they're a plant,

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whether they're an organism, beneficial or actively harmful.

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Nick Bailey has been on the trail of the joys of lichen.

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Look out of your window and they're absolutely everywhere.

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But very few people know much about the secret world of lichen.

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You'll find them in graveyards, in gardens, growing on old trees.

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And often people try to get rid of them or scrub them away.

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are they truly a friend or a foe to gardeners?

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A lichen is two organisms functioning as a single unit.

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It's a symbiotic partnership between a fungus and an alga.

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and can grow in the most extreme environments

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where few other living things can survive.

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and has been studying and identifying Britain's native lichens

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Most of us have got lichens in one form or another in our gardens.

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How many lichens are there globally, how many different species?

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30,000 different lichens in the world.

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In Britain, the latest count is something approaching 2,000 lichens.

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People often cite lichen growing on benches or stonework

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as a sign of clean air but that's not strictly true, is it?

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Yes and no. If you go to the west of Scotland,

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there will be a lot of spectacular bushy lichens.

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This area, we're sitting in the south Midlands,

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this area from the Industrial Revolution onwards

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was heavily affected by sulphur dioxide pollution.

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This bench would be covered in one particular lichen

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that actually thrived in the high sulphur dioxide levels.

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because the levels of sulphur dioxide have gone down.

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We're now in a new pollution regime with lots of nitrogen.

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That's why a lot of the twigs these days are covered in these

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spectacular yellow lichens. They favour a lot of nutrient enrichment.

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So lichens are an indicator of a certain type of air quality

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so they can say, this is really pure clean air or they can say,

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this is really nitrogenous air or this has got another toxin.

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The species of lichen will indicate the air type.

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Yes, they are very sensitive indicators, yes.

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I think they are beautiful things.

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They're a benefit to the environment.

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If this bench happened to just be a varnished bench with

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no lichens on them, there would be less biodiversity.

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It is not only the lichens themselves but if you started

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there would be all sorts of invertebrates underneath.

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So the birds are literally going in in the depth of winter

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and they can find those mites and grubs.

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Yes, they sometimes strip off the lobes to get at the

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various different invertebrates that specialise in living

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With an array of antique stone and mature trees,

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a graveyard is one of the best places to find lichen

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and answer a common gardening question.

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Gardeners tend to think that lichens are killing off a plant

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when they have these clusters across the surface but that's not

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the case, is it? I get asked this so many times.

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People have a shrub that looks sickly in their garden and it

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is covered in lichens and they think it is the lichens that are

:22:12.:22:14.

What's actually happening is the shrub is becoming sickly for

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another reason and the extra light coming in, because there

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aren't so many leaves on this side, is allowing the lichens to thrive.

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So it is in no way a parasite, it is not damaging the plant?

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No, there is no actual hyphae that are going into the bark.

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this is probably the one I have seen most commonly in gardens.

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Is it particularly common in the UK? It is very common.

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I guarantee any gardener in the country will have this in

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their garden. It is called Xanthoria parietina.

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you can see, is a pigment on the surface of the lichen.

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That has been shown to have active chemicals against

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Wow. So it is actually potentially a seriously useful medicine as well?

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Yes, that is being investigated actively at the moment.

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These are particularly interesting because here we have got

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a sandstone gravestone and we've got a limestone gravestone.

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It is exciting for a lichenologist because the communities are

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It is like being able to step from an acid moorland straight on

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There is not one lichen growing on that stone that grows on this

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the two yellowy-orangey forms look very similar to me.

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They look a similar colour but they are different species and I can

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We perform what we call spot tests so if I put

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a spot of chemical on this orange lichen, here,

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you'll see there's a colour change. It is a reddish, purple colour.

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Whereas if I try it on this lichen over here,

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you see there's perhaps a slight darkening

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I think it is fascinating that these two stones right beside each

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other represent two totally different ecosystems.

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I have been truly amazed by the qualities of lichen.

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They are incredibly diverse, they grow in all sorts of

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environments and they can adapt to all sorts of situations.

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By increasing biodiversity and providing food for birds and

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insects, these fascinating but often overlooked organisms can be

:24:35.:24:38.

I do so agree with Nick, I think lichen is wonderful.

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Even little splodges improve the character and texture

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and you can encourage it into the garden along with moss.

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This brick wall here, I painted with yoghurt.

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It looked a bit odd at first but moss and lichen have grown

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it's time to get stuck in with those jobs for the weekend.

:25:06.:25:26.

Because buddleja flower on new shoots, it is time to cut all last

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year's growth right back to a bud just above ground level.

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If they are in open space, this can be right down to the ground

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but in a border, it is a good idea to leave a foot or so of growth.

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As soon as your ground is dry enough to rake fine, sow some parsnips.

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Shallow drill about a foot apart and

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sow the flat seeds as thinly as you can.

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it is a good idea to add some radish seed to the same drill.

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These will germinate and grow quickly and can be harvested

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before they're competing with the parsnips for light or nutrition.

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If you bubble wrapped your greenhouse or

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now is the time to remove it because you want as much light as

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If you didn't use bubble wrap, give the glass a really good clean

:26:23.:26:30.

I have to say that I have been really enjoying the weather

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over the last few days but let's see if us gardeners are all

:26:40.:26:42.

going to have good weather this weekend.

:26:43.:26:55.

Hello. If you are hoping to get into the garden this weekend, perhaps to

:26:56.:27:02.

tidy things up ready for the new growing season all to do some

:27:03.:27:05.

reading, the good news is we will see a lot of settled weather and

:27:06.:27:09.

some warm sunshine. Not just dry, but sunny. Nine times can still be

:27:10.:27:14.

pretty chilly at this time of year, and that is how we will start

:27:15.:27:19.

Saturday morning. Temperatures in the towns and cities close to

:27:20.:27:24.

freezing, but higher -- lower in the countryside. As the getting out and

:27:25.:27:30.

about and in that gardening, it looks set fair for most. The far

:27:31.:27:34.

north of Scotland will have a bit more cloud than drizzly showers,

:27:35.:27:38.

though I'd lie winds in central regions, we could see CC - 18

:27:39.:27:42.

degrees. But there'll be a nagging chilly north-easterly wind. You may

:27:43.:27:48.

need a jumper rather than a T-shirt if you are heading out. A chilly

:27:49.:27:49.

star with And Nick Bailey delves into

:27:50.:27:50.

the fascinating world of lichen. You know, these daffodils were

:27:51.:27:57.

flowering at the beginning of Now at the end of March, they're

:27:58.:28:01.

coming into their best and It is better to wait for something

:28:02.:28:07.

to arrive to its season. This weekend,

:28:08.:28:14.

when the clocks are changing, it's Mothering Sunday so pick some

:28:15.:28:17.

flowers for your mother and if you are a mother,

:28:18.:28:21.

enjoy the day with its extra light. I'll see you back here at Longmeadow

:28:22.:28:26.

same time next week.

:28:27.:28:31.

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