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Over the years, Gerry has answered more than 5,000 of your gardening questions. His knowledge is based in science and practical experience, and by working on radio and television.
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The flowers seemed to be coming out, but they have all gone brown now and never actually flowered
I have two hydrangea in a shrub bed in the front garden growing side by side with each other now in their second year. Both seem to be growing painstakingly slow (was under the impression they were very hardy and quick to grow) one is doing well in so far that it is healthy looking but the other shrub has holes in a lot of its leaves and isn't as full with leaves as the other, just wondering if you can tell me why there are so many holes on the leaves and what I can do to remedy this. They are hydrangea macrophylla mophead variety. Look forward to hearing from you.
Hi Gerry, I've a beautiful white birch tree that has recently become infested by mini green caterpillars. Can you please advise how I can remove them before my poor tree ends up leafless? Many thanks.
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