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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 I think a variety of Arbutus. it seems to be suffering in some way. im wondering if you can have a look at the pictures and see what you think, and if i can treat it.
Wisteria is well established, growing along a fence, c 30 m long, straggly & bits are somewhat bare at this time of year. Probably need someone to prune it properly, even if I lose a year.
Recently in 'The Irish Garden' I saw a recommendation to prune a daphne. I had always believed any cutting of a daphne was wrong, even cutting flowers. Please advise, should I prune daphnes now? Thanks and happy new year.
Two years ago I damaged the bark on this tree in September, it bled badly and the leaves browned and dried up that autumn with no colour at all. The same seems to be happening this year, nothing like the normal colour display, very little flower on it this year and once again leaves drying and just going brown as in the photos. Any ideas of the problem? Many thanks Fran.
Part of our garden in being overrun by Russian Vine which is coming from a neighbour's garden. Our bamboos are being strangled and the vine is scrambling through the tree canopy. No sooner do we take it back to the boundary than it returns. Our neighbour invited us to chop it back on his side but it is rooted in an impassable thorny thicket. I don't like using chemicals but I'm desperate! Any ideas?
I have a Cedrus Atlantica 'Glauca Pendula' which is 5 years old. It's about 5ft tall and the leader has now reached the ground. I am wondering what i should do next, if anything, to help it change direction?
I planted a Magnolia Tree in Spring 2009. It went in in blossom and blossomed 2010 & 2011. In 2012 & this year it only produced two or three blossoms. The tree appears to be extremely healthy however, I have under-planted it with spring bulbs and sweet William for the summer. Is this the problem? Do I need to remove them?
We have a beech hedge in front and back garden, it is covered in something like greenfly. At the moment cannot even trying cutting it, as there are millions of these flys on it. What would you suggest, we have tried spraying with suddy water, and spray to kill greenfly cannot remember the name of the spray, but because there are so many, nothing seems to work.
i have this tree planted about 7 years. the blooms are beautiful in maythe leaves however are yellowing but the main concern is that the leaves are not very numerous. tbh it seems to be in trouble. the small branches are delicate looking and unhealthy. i suspect that there is builders rubble directly underneath. there are other trees and shrubs growing very contentedly beside it. should i transplant later in year?
I have a lovely large shrub of Daphne bholua "Jacqueline Postill" which has sent up suckers all around for the first time this year. I would like to pot up some and would like to know when I should do this? Also should I remove the rest? The mother plant is ringed with them, all along the root lines. During the recent hard winters a couple of branches died and I cut these out. I hope this does not herald the end of my daphne.
I have a wide double row beech hedge. How and when can I cut it back severely ? One row grows towards the front, and the other to the back. The middle of the hedge is like an empty "tunnel".If I cut back one side I will leave the trees on that side with hardly any leaves. Would there be a danger that this may kill the row, or should I remove one row altogether ? It has become difficult to trim as it's about 6 ft.6in. tall and about 4 ft.6in. wide in places.
The above tree, southern beech, was blown over a year ago. Its about 4 to five meters tall. I pulled it back up and staked it firmly. Its growing quite well but recently the tie broke. I fixed it I feel without the staked support it will fall over again. Can I dig it up and replant it so that it will have a firmer base? It has a lot of sentimental value as well as being a nice tree.
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