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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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The new growth on red robin plants are inclined to sag forwards and downward to the ground. My question is, should I stake them upright with bamboos before trimming the side of the hedging, or trim as they are. The only thing is if I trim as is, I will be cutting approx. 12 to 18 inches off any plants growing tip that's leaning forward and down. It is a relatively new hedge and is only 3 feet in height and I wish it to grow up to 10 feet. Also, there is a dividing blackthorn hedge directly behind it, will it hinder/impact the red robin in any way? Is it necessary for it to be removed at this stage or can this be done later?
I can't find a supplier of Nymphaea candida (for our small pond) in Ireland: any suggestions please?
I accidentally sprayed vinegar on my vegetable garden. I sprayed with the hose right away with water of course. What is the probability that my plants will die??
My lawn grass is in very poor condition with weeds and moss, what can I do now i.e June to improve the condition without resetting? Also I have a hedge out the back that has briars running through it is there anything I put on this can will kill the briars but leave the hedge?
Bamboo trouble. I bought two pots of bamboo at Woodley, it seems to be fading fast. I water it and fertilise it. Leaves turning brown... is it that I need bigger pots .
i keep finding this white stuff on dead plants in my indoor garden. Is that what is killing my plants? Please see photo attached
Something is munching my Brocolli plants both those bought as plants and those I have grown from seeds. Doesn't seem to be slugs, cant see any tiny eggs or caterpillars although there are small tracks on the reverse of larger leaves? Might it be Vine Weevel although there are lots of big bits from the edges of leaves as well as the middle? The photos below give you a better idea, some of the larger plants have had whole leaves devoured while others have survived attacks, my seedlings are coming on and it looks like they will be victims as well 🙁
Can I plant daffodils under a mature magnolia? They are not doing well in pots, but I am afraid I might damage roots of magnolia Stellata as they appear close to surface. Thank you
A few years ago I set Photinia Red Robin and Pink Marble hedge mix of 2:1 respectively. Unbeknownst to me, the Red Robin is a quicker grower and has crowded out the Pink Marble and as a result there are slight gaps where the Pink Marble is.Should I leave things as they are or should I replace the Pink Marble for Red Robin in the autumn? Is there anything you could suggest to help the current issue? Also, in your opinion which is the best fertilizer to use and when. (I used well-rotted horse mature spring 2014 and it seemed fine)
I planted some hoheria trees last year but the leaves have some type of fungal disease. There are small black spots on the underside of the leaves, the leaves turn yellow and fall off. I sprayed with Rose Clear Ultra and it definitely helped but the problem seems to be returning again. Do I need to keep spraying or should I replace the trees? Any advice would be appreciated. thanks.
I am new in gardening and decided to plant Marigolds from seeds from shop. I know how it must look but what was grown from my planted seeds confused me a lot! I am not sure I am growing Marigolds. What do you think it could be?
Need help in selecting a boundary for shelter in our garden in a very exposed area of North Kerry, in the countryside approx. 7km from the sea/coast. I don't want it to grow too high, would like to keep an open feel to the area but creating a shelter belt with little maintenance is paramount something frost hardy. There is a ranch railing running along the boundary presently on that side (westerly side) of the house and i have a border of approx 2ft width of soil to work with inside the fence and outside the gravel drive way. On the other side of the house I have a ditch with 2ft border inside it to work with, need something that will provide shelter and will create a balance with the other side. Both sides are approx 15m away from the house. Hope you can help.
So my lawn has become around 70-80% scutch. I want to avoid the nuclear option of roundup, Rotavate and reseed since the lawn is about 3/4 of an acre. I'm scarifying heavily tomorrow and overseedng in the hope it will help. Have I any other options..??
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