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Clematis Arabella - how and when to prune
in Plants
Hi. I'm a gardening newbie and bought a Clematis Arabella last summer which did really well. I understand I should be pruning it to encourage growth but I am unsure when and how much. Feels scary to cut it all back as I fear losing the plant altogether. Also I can see some green leaves have started to grow. 
Looking for some advice please. I live in London, UK. Pictures attached


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You'll have to keep tying it in, as it's a diversifolia type, and doesn't climb the same way as most others.
I live in west central Scotland - not where that photo is...
If the plant is being correctly watered, the roots will be down well enough that you won't damage them. The soil in pots always settles too, so you may need to add a little extra compost, or similar, during the growing season anyway.
Just try and avoid covering the growing point too heavily. They're slightly different from the larger flowered varieties which appreciate good coverage to encourage new stems from below ground level. They're more like a standard perennial plant in that sense
I live in west central Scotland - not where that photo is...
I was pruning a clematis a few years ago, and trying very hard to avoid damaging another [slightly earlier] one which grows alongside, and through it. Of course, I snipped the wrong bit.
You're very unlikely to kill them with enthusiastic pruning, which is the main thing.
I live in west central Scotland - not where that photo is...