Questions

Over ten years, Gerry Daly answered more than 5,000 gardening questions. His knowledge is based in science and practical experience, and by working on radio and television. Access to the advice database is open

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Need to fill gap in boundary hedging - 25 Metres long with tall trees at each end of gap. Although majority of boundary has whitethorn growing wild, I would like to have a more formal, thick, fast growing hedge in this section, with a minimum height, over time, of 2 metres.On my side of boundary the hedge faces South and there is a natural stream running parallel to the hedge, at that location, approx 3 metres from stream.
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Im trying to find out the differences between Cornus Controversa Variagated and Cornus Alternifolia "Argentea" apart from the difference in the size of the leaves?
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A friend of mine has this strange plant in their garden and nobody knows what it is. They have brought a sample of the plant to a few garden centres and they were unable to identify the plant. I have attached a photo of the plant, I have also photos of the individual leaf and I can forward that on
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We are planning to put in an Oak-tree lined driveway. The drive itself is 37m long up hill. The drive is south facing and is fairly exposed to both wind and distant sea spray. Could you please recommend suitable Oak species with appropriate spacing? Is it better to opt for younger trees or semi-mature? i was thinking of then planting carpet roses along the bank? Would these survive? Also, could you recommend suitable plants to disguise the fence on the left (bamboos perhaps?)
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Can you tell me how you can tell the difference from cotinus grace and cotinus royal purple this time of the year. I am after cotinus grace and in one garden centre there is no label and the staff thinks its grace but not sure!
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Can you recommend a hedging /trees for a boundry. I already have golden leylandi around some of the boundry which goes around the house. There is a piece of land behind where our percolation area is. The general area is marshy so can you recommend something that likes the wet.
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