I recently planted 2 grown Nellie Stevens Holly trees at the beginning of winter when we had a warm spell 3 weeks ago. I live in Zone 6, clay soil. I noticed the leaves have turned lighter with brown spots, and some are dark brown. One of the trees shows signs of dieback. The branches are brittle, no green when I scratch them. We recently went through a winter freeze, with temperatures between 22-14 F. How can I help my hollies? I’m not sure what is happening to them or how to save them. Any help is appreciated!
It looks like it may not have been watered enough at some point before or after planting and has now caught a fungal infection in its weakened state, probably Holly leaf spot. Hollies prefer acid soil - do you know if your clay is acid or alkaline?
Here's a US-based site (GW is UK based) which may help:
Looking at the surrounding area - it looks absolutely parched, which it will have hated. Hollies need adequate moisture until really well established, and even then - they don't appreciate drought and dry soil long term. I'd agree with @BobTheGardener - it looks like a fungal infection -sooty mould or something similar.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
Thank you for your help! I have alkaline clay soil, and the other 3 hollies I planted in the same soil a little further away from this spot are thriving. Also it recently rained and snowed, and even a few days after the soil is still moist. Hopefully that will help the hollies with any hydration issues. Can I spray a general fungicide or a water/bleach solution on the leaves in winter? Will that help these hollies?
Posts
I'd agree with @BobTheGardener - it looks like a fungal infection -sooty mould or something similar.
I live in west central Scotland - not where that photo is...