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Azalea problem
A friend has an Azalea in a pot in a sunny position that flowered well but new growth appears deformed and results in a hard material. Any clues? These photos may help.




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Some shade and watering with rainwater will help, if you don't live in an area with soft water. Suitable growing medium too, if it's staying potted. Not compost.
I've no idea what the 'growth' is - perhaps a gall of some kind, although the water could be a source?
Azaleas and rhodos just grow here with very little intervention, so it's not something I've ever seen. We have the perfect climate for them in the west of Scotland. Our tap water is also soft, so we don't need to collect rainwater for watering plants which prefer that.
I live in west central Scotland - not where that photo is...
They also have a Hydrangea in a pot next to it which hasn't flowered, apparently, this year or last. I have suggested pruning too hard. It is green enough but not at all tall. Just a small mound of green leaves about 30cm - 40cm diameter. Not sure what the issue may be. Root constriction??
Pruning at the wrong time is definitely a factor, but it sounds like a young plant anyway. Pruning also depends on the type. Do you know what it is?
I live in west central Scotland - not where that photo is...
However, I think the pot is the big problem. If it's a youngish shrub, it would be ok for a while, but getting them flowering if they don't have room can be tricky, and they need a bit of help with the soil and nutrition in a pot. Difficult without seeing it though.
I wonder if they bought it as one of those forced plants which appear for the Easter market? It's always a problem, and there have been lots of queries, particularly this year, about them. It can take a while for them to recover, strengthen up and start growing the way they would normally.
I live in west central Scotland - not where that photo is...
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/azalea-leaf-gall.htm
https://www.rhs.org.uk/advice/profile?PID=740
I think they are unsightly rather than damaging. I suspect your friends probably just need to improve their cultivation and hygiene!
My mophead hydrangeas are unlikely to flower this year due to heavy frosts just after I'd pruned. Such is life.
Strange that it was last year too though. That winter was mild for most of Scotland, so late frost would only be likely if they were in a glen somewhere, or at real altitude. There were ground frosts forecast in glens for today up here
I live in west central Scotland - not where that photo is...