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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 intend to plant a new shrub border in an area that has not been previously cultivated. I have sprayed the grass etc with weed killer and that is now brown. Can I avoid digging by covering the area with a thick layer of farmyard manure and leaving over the winter before planting in spring? Or can you suggest any other method that does not involve digging?
I recently planted trees and used woodchips that had been used as cattle bedding and used clean woodchips to suppress the weeds above the surface. I am now told woodchips will rob the trees of nitrogen? If so how can a compensate for or rectify this?
I got a couple of green hollies. They are quite tall but a bit thin. If i prune them will they bush out a bit more? And how much can you take off them?
I have a Griselinia hedge about 6ft high and 60ft long!!! I thought it was killed by frost as all the leaves have fallen off and there was just bare branches. However now there is a good bit of growth comming from the bottom of the plant!! Should I cut down the hedge? Feed it? Or just leave it be? Will it grow back do you think?
Mixed hedge planted 2 years ago. Clipped back last Februray, grew great this year. Over the last month however leaves on whitethorns plants only have gone white and some of the trees are starting to look dead. Do you have any idea what it is and can it be cured.
My back garden willow (which I aggressively pruned in the Spring) is massively infested with black aphids, and in the last couple of weeks, their honeydew has been attracting wasps. The wasps make it difficult to be in the garden, plus, I need to prune the willow, but risk being stung. Is there anyway I can get rid of the aphids, and thereby also get rid of the wasps? I'm attaching a pic of the aphids in case I have the wrong bug.
This is a tree, Salix matsudana tortuosa, I've been told, that is suffering this year and wonder if you can help me to help it, thanks! could it be in too dry a spot?
how.do.i.get.laurels.to.grow.from.cuttings?
For some reason my septic tank is slap bang in the middle of my back lawn. i'd like to hide it but not sure if i can plant directly over it. what do you think? a few Taxus Summergold maybe and a tall conifer?
I planted a magnolia Susan this spring in the garden and it was full of flowers in May but after they were gone no leaves appeared. What do you think happened?
4 weeks ago we planted mature (10ft) Portuguese Laurel which were transported from Italy. In the past week a lot of the leaves have turned yellow. They are watered every second day for about 20 mins per tree - are they getting too little or too much?
Would you recommend a name of a fast growing hedge and one that would stand up against the winters we are having of late?
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