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Advice please: sudden wilting of flowers
Dear all,
I have some plants that have suddenly wilted in the garden, but I can't work out why. In a pot one of 4 helichrysum plants has wilted, but the others are currently fine. The compost in the pot is new this year and I have been treated it with nematodes to kill vineweevil, and I can see any grubs in the soil, so I don't think its that. In the soil in the garden I have a daliah (Bishop of Llandaff) that was doing very well and then has suddenly wilted and looks like it is going to die - although the daliahs around it (including another of the same variety) seem to be fine. There are some daliah's in a nearby pot of the same variety that are doing very well too. Could it be a soil fungus? I've attached a couple of photos. Thanks for your help!

I have some plants that have suddenly wilted in the garden, but I can't work out why. In a pot one of 4 helichrysum plants has wilted, but the others are currently fine. The compost in the pot is new this year and I have been treated it with nematodes to kill vineweevil, and I can see any grubs in the soil, so I don't think its that. In the soil in the garden I have a daliah (Bishop of Llandaff) that was doing very well and then has suddenly wilted and looks like it is going to die - although the daliahs around it (including another of the same variety) seem to be fine. There are some daliah's in a nearby pot of the same variety that are doing very well too. Could it be a soil fungus? I've attached a couple of photos. Thanks for your help!


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Don't know about the helichrysum. Do you mean you have four in the same pot, or four separate plants and only one is struggling?
If it's four in the same pot, I'd think they're possibly struggling for enough moisture, unless the pot is big enough.
I live in west central Scotland - not where that photo is...
Thanks for your reply, unfortunately I watered the Dahlia well yesterday and it didn't recover and all the helichrysum are in the same pot - it's 50cm in diameter so quite big and also well watered, with just one wilting. You can see the Dahlia to the right of the wilted one is currently OK. Do you think it could be a soil fungus?
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
It won't have the same access to soil like the others as it's next to that post. It doesn't take long for them to get dehydrated, and it often doesn't show for a while. It can be looking ok, and then suddenly it's a bridge too far to sustain flowers and foliage.
There may have been damage to the helichrysum. I don't grow them, so difficult without seeing properly. It might just be that it's the weakest one of the four too. Did you grow them from seed or plugs etc? Some plants simply don't thrive as well as others, even with the same conditions.
I live in west central Scotland - not where that photo is...
Best wishes