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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 bought a rhododendron approx 2 months ago. It was doing fine for about a fortnight forming buds. It then went downhill. It now looks like its dying. At start leaves and plant started to go brown plus the buds never opened within the two months. I have watered it thoroughly to no avail. I then gave it an examination and have noticed the buds are going a greyish colour.Could the root of my problems have been Rhododendron Bud Blast?
I just recently planted a Rhodendron and have noticed it is not doing very well. The leaves are curling inwards plus have noticed some yellow blotches on the underside of the leaf. Could it be iron deficiency related?
I have two small box hedges in terracotta pots that are cone shaped. approx 2ft tall, problem is, one of them is starting to discolour a sort of brown pigment. can you help me to sove the problem please.
I want to install a water butt plus pump to water garden - do you have any recommendations? Back garden is about 20 meters long, planted on 3 sides, 2 mature trees at back wall, have planters on all sides of front garden. Have recently renovated so builder will install from downpipe. Garden drains very well as on slope so soil tends to be dry. I'm not sure what is an appropriate size ie 100 litre or 200 litre.
I have a conifer tree that started getting brown patches last year and these are getting larger and larger. What could have caused this? My garden is quite exposed. Also, last summer, I made a change to the area where that tree is planted: the whole bed used to be covered in gravel and I removed the gravel and moved the ground in order to add more plants. Could this have disturbed the tree?I don't know the name of the tree but its normal colour is pale green/golden.
I have 4 buxus plants in pots my question one plant is slowly deteriorating it has lost most of its leaves the other 3 are good and healthy can i save it?
I have a Eucalyptus Gunnii nad snow gum to plant, is it safe at the moment to plant them with the frost and snow expected? I was going to heavily mulch around them, I just didnt want to leave them in their pots over the winter.
My Skimmia 'Rubella' shrub has not flowered so far this year. The leaves are yellowish and pale green. It is in a container outside my door since last November when I bought it. Can you please advise how i can help this plant? Any hope of a flower at this stage? Thanks...
I am hoping you can help me with some information. Attached are two photos of plants i have growing in my back yard. Firstly, could you tell me the name of these plants and secondly, i have noticed recently that they are going very brown, i have been feeding them with shrub feed and watering them every second day. I live near Dublin City Centre and only have a yard and no garden. The plants are in earthenware pots, against a red brick wall in the yard. I am just interested to know am i doing something wrong that is causing them to go brown and what i can do to reverse this. I would be most grateful for any information you can give me.
I have attached a photo of golden cypresses that i have, this year they seem to be not doing too well and of late i have noticed that some of the lower foliage is actually dead,i know this because it flakes away when i touch it, what is the possible problem and remedy?
The new box hedging which I started planting last year and finished this year is doing quite poorly compared with the one I planted a few years ago. I have been watering it regularly but wondered if there was any specific feed which would help. I got a feed for topiary at an Ideal Homes exhibition about 5 or 6 years ago which was very good but the company has now gone out of business.
I planted Acer palmatum about 3/4 weeks ago. All the leaves have gone dry and brown, have continued watering, should i give up or might it survive?
I have a lonicera japonica in a container and it is climbing well but some of the leaves have spots and there is a blue/grey fungus on one stem. What should I do?
I planted 47 bare root acer trees mid March and they seemed to be doing really well....they all leafed fully but now theres about 3 of them where the leaves seem to be dying. Is there anything i can do? is it just the leafs or the whole tree?
I have a conifer tree (potted) on my patio that seems to be suffering very badly. I have been told that the tree needs lots of water and I have given it plenty but with no results. The tree seems to have gotten progressively worse over the last 6 months. I am moving to a house soon and I had intended to plant the tree in the garden however I am wondering if this would be a wasted exercise or if the tree is even salvageable at this stage? Any advice would be greatly appreciated. I have attached photos of the tree in question.
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