The message
from "Tracey" contains these words:

Thanks for the suggestion Steve. I always make sure the plants are well
watered in warm weather and the blueberry only gets watered with rainwater
whenever possible as that's what was recommended on the info tag that
accompanied the plant. So I don't think that's the problem. I tried
putting some coffee grounds on the soil the other day to see if that helps
as I read it can.

Ideally you'd compost them. Adding fresh grounds or tealeaves (for
example) will reduce nitrogen. Of course, too much nitrogen could just
be a problem too,

However, it is difficult to overwater a blueberry - remember, the North
American blueberry is otherwise known as the 'swamp blueberry'.

--
Rusty
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