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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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I have planted about six hydrangea plants approx two years ago and none of them are flowering. They are all doing well with leaves and growing but wont flower.
I have a very big area which in Spring has Snowdrops and Fritillaria.. It is really lovely, but is gradually being gobbled up by ivy. There is way too much to remove manually.. How can I kill it without damage to the Spring bulbs? I should say that there are also lots of narcissi.
Our bungalow has a blank south-east facing end wall. Any suggestions as to what we could grow there? I'd love some sort of fruit tree. We would have to remove some of the concrete path. The wall is quite exposed.
I have some silver birch that have been doing very well. They are 2-3 years old approx. All of a sudden the leaves on one or two of them are turning yellow and another one is wilting. It is drooping quite badly - about 1/3 of the tree is hanging low. I watered it but it doesn't seem to have improved. What could the problem be?
My two new golden weeping willows are showing all the signs of willow canker. The leaves went black canker on the stems die back. Is it worth trying to spray them with fungicide or am I wasting my time?
Can you please tell me what might be causing my araila to be discoloring as seen in picture. Leaves drop off when you touch the discolored ones. It is shaded from sun up to 1 pm then in full sun. It is sheltered from east and north wind but does get south westerly breeze. I only have it 2 years and is a young plant 4ft high with one stem. Any advice greatly appreciated as its a rare plant and was expensive even for such a small plant.
Would you please give me instructions for growing a willow arch - from scratch?
I have laurel that were potted and planted 8/10 weeks ago. the leaves are going yellow and falling off. are they dying. please advise what i can give them (any fertilizer etc ) they are weed free and have been watered. some have new growth( the green laurels) but alot are going yellow.
This time of year when in the Phoenix park and some town parks I get a lovely scent from a large deciduous tree, its can be the size of a mature beech tree and the flowering part is a lighter green than the leaf, not very conspicuous but one can get a lovely scent wafting in the breeze. I don't know its name is.
Planted a few years, ground not wet, 10% of leaves are yellowing and turning rusty. Remaining leaves are perfect. Can you please identify what may be causing this. Photo attached showing the discolouration.
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