Could it be this? Some varieties can handle full sun better than others I believe, do you know what it's name is? I've got one growing fine in a south facing bed but it is clay soil so doesn't get too dry. I suppose if it's growing conditions aren't optimal it will be more likely to succumb to disease.
Just looked at mine, I have two, been in for years, one in shade one in sun, both got holes like yours, can’t see anything on them except lots of cuckoo spit and I didn’t think that caused any damage. If they don’t buck up they’re out. Can’t feel sorry for anything here, no passengers 😀
Gardening on the wild, windy west side of Dartmoor.
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Here is some info on optimum growing conditions. See if it applies to you.
If you live in Derbyshire, as I do.
Could it be this? Some varieties can handle full sun better than others I believe, do you know what it's name is? I've got one growing fine in a south facing bed but it is clay soil so doesn't get too dry. I suppose if it's growing conditions aren't optimal it will be more likely to succumb to disease.
If they don’t buck up they’re out. Can’t feel sorry for anything here, no passengers 😀