Mine has a similar look. It is 7 or 8 years old and was not at its best last year either, but survived. I might give it another go, will prune down to the ground in Spring or earlier as it is a bit of an eyesore. They do suffer from sudden wilting.
I have dug one up thinking it was dead only to find that some of the roots were alive so be careful what you do. Iy was a long time ago and I am unable to say if it survived.
I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
Never give up on a clematis. If they get hungry, thirsty, strangled or have stems damaged by slugs they can fail but not for long. I've had them re-surface 2 or 3 years after apparent death.
Cut back all the dead looking stems and release any still held by those little green plastic ties then weed gentlyaround the base to remove competition and avoid damaging its roors.
Then water generously - 10 to 15 litres weekly and more in dry spells. Pour it slowly so it sinks in deep rather than running off.
Give it a good mulch of organic matter in autumn and a handful of slow release clematis, rose or tomato fertiliser next spring. When you see new shoots forming train them as horizontally or diagonally as possible as that encourages more flowers. That narrow suport will not be enough for a happy Jackmanii Superba.
Vendée - 20kms from Atlantic coast.
"The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
Never give up on a clematis. If they get hungry, thirsty, strangled or have stems damaged by slugs they can fail but not for long. I've had them re-surface 2 or 3 years after apparent death.
That's amazing, and really useful info for future reference! I'm trying desperately to think how/where I could fit a couple of summer ones in here!
Thought it was meant to be a summer one but it only lasted a few weeks… I think… can’t quite remember when planted it. Thanks!
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Luxembourg
Cut back all the dead looking stems and release any still held by those little green plastic ties then weed gentlyaround the base to remove competition and avoid damaging its roors.
Then water generously - 10 to 15 litres weekly and more in dry spells. Pour it slowly so it sinks in deep rather than running off.
Give it a good mulch of organic matter in autumn and a handful of slow release clematis, rose or tomato fertiliser next spring. When you see new shoots forming train them as horizontally or diagonally as possible as that encourages more flowers. That narrow suport will not be enough for a happy Jackmanii Superba.
Luxembourg
I'm trying desperately to think how/where I could fit a couple of summer ones in here!