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Dead branches on ceoanthus

(10 Posts)
lixy Thu 22-Aug-24 15:09:12

I have two of these Calafornian lilacs. One is fine, the other flowered well this Spring but now has some dead branches at the top. The bark looks a bit like tomato stems do when they get black leg at the end of the summer.
I have cut off the dead branches, back to healthy wood and am planning to give both shrubs a shrub feed this weekend.

Anyone any experience of this? Any tips on how to help it make a speedy recovery would be gratefully accepted!

Esmay Thu 22-Aug-24 19:11:12

I had a magnificent Ceoanthus .
It produced such a profusion of blue flowers and dark green leaves - and then it died .
I know that they dislike a soggy ground and that was perhaps the explanation .

J52 Thu 22-Aug-24 19:47:14

They are reasonably short lived, often just a few years.
I prune mine after flowering and it has new growth from the bottom.

lixy Thu 22-Aug-24 20:15:55

Thank you both. I have clay soil here so either claggy or rock hard! It swallows compost much faster than I can produce it. I have a feeling the ceoanthus is suffering from the erratic water supply this year.
It was badly hit by frost a couple of years ago and had recovered from that. I’ll see how it goes over the Winter.

The other one, just a few feet away, is fine so fingers crossed. They are such magnets for bees when they are in flower.

RosiesMaw2 Thu 22-Aug-24 20:46:39

Do you mean ceanothus ?
I would just cut out the dead branches as you have done, tidy up the shape and see what happens next year.

foxie48 Thu 22-Aug-24 21:38:38

They are short lived. We have heavy clay soil and they do well with us until they decide to die. I'd just cut any dead bits off and enjoy it for a little longer then be prepared to replace it. I love the colour though,can be such an intense blue.

Mollygo Thu 22-Aug-24 22:18:19

I’ve never had any success with those, even though a house two doors down has quite a sizeable ceanothus an another further down the hill also has one.
Our soil is heavy clay. I’m watching this thread for help.

lixy Thu 22-Aug-24 22:18:39

It is lovely when in flower and the bees love it too. I have taken out the dead bits and will try to give it a less hacked-at look when the wind drops a bit over the weekend.
FoxieI had read that they are short lived so thank you for confirming that.
RosiesMaw2 thanks for the spelling. I had always just called them Californian Lilacs - shouldn’t try to be posh!!

I gather there is a pink variety but I think I’ll stick to the blue if a replacement is needed, the darker the better for preference.

SkippyO Fri 23-Aug-24 14:08:17

Might be worth taking some cuttings from your healthier, unaffected ceanothus as a precaution although I believe they're considered tolerant of hard pruning.

I took cuttings in mid-July from a neighbour's highly floriferous variety that had poked a shoot through a gap in the fence. All three cuttings took, are now well rooted and I shall grow them on in pots for planting out next year.

lixy Fri 23-Aug-24 20:18:59

That’s a good idea skippyO thanks.
I did have to prune them both quite hard after that really cold snap a couple of years ago when they both suffered frost damage, and they both recovered from that well. I’m guessing that some kind of fungal infection has got in through a pruning wound even though I’m very careful about cleaning tools between plants