I also noticed there is a large diameter downpipe very close to the plant. Could there be seepage from that, to the plant roots? Is the pipe a sewage pipe from a bathroom upstairs? Just a thought.
There's two different queries here which is why there's confusion, especially as the photos and original post have been quoted in the 2nd query Having said that, I think @GardenerSuze is probably close to it re climactic conditions with the 2nd query from . Big variations in conditions, especially long term, have a huge impact on many plants, regardless of how and where they're growing, and what country. Even the country they originate from @sheepdog23oamaruG0sW7bWL
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
@sheepdog23oamaruG0sW7bWL Just one other thought. Have you ever soaked a plant in a pot with a view to planting out,walked away for half an hour, returned tipped it out only to find parts of the roots are still dry. If a plant is left like this for any length of time random areas will become dry leaves curl and stems die. I would water every 4 to 6 days depending on conditions right down at the base of the plant at least two large cans of water per plant. There will be some dampness from evaporation which may help. Last summer in the UK large trees suffered from drought the dry air also caused a number of problems such as leaf curl. Some plants have been impossible to rehydrate even plants that would normally cope with dry conditions.
I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
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Having said that, I think @GardenerSuze is probably close to it re climactic conditions with the 2nd query from .
Big variations in conditions, especially long term, have a huge impact on many plants, regardless of how and where they're growing, and what country. Even the country they originate from @sheepdog23oamaruG0sW7bWL
I live in west central Scotland - not where that photo is...
I would water every 4 to 6 days depending on conditions right down at the base of the plant at least two large cans of water per plant. There will be some dampness from evaporation which may help.
Last summer in the UK large trees suffered from drought the dry air also caused a number of problems such as leaf curl. Some plants have been impossible to rehydrate even plants that would normally cope with dry conditions.