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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 planted bareroot Blackthorn / whitethorn hedge in January 2010 and some of the plants have developed well and are over 3ft high while others are developing at a slower pace. However, in order to develop the thickness of the hedge and promote growth near the base of the plant should I cut the hedge back at this stage or should i let it develop to the required height (maybe 6ft) first.
I am getting rid of a flower bed which has alot of Geranium Endressii in it. I was just wondering if I sprayed them with a weed killer would it kill the roots also as there are too many of them to dig up.
I have some hanging. basket plants which I would like to save - Dichondra Silver Falls & Trailing Verbena Lanai Early Scarlet. I think they're perennial in warmer climates but is there anything I can do to safely overwinter them here ?
what is the best hedge to grow?
My cabbages are getting eaten and as i have seen earwigs at them assume they are the problem. i have put wet newspaper down in the evening to trap them without much sucess, any help would be great
I have an ugly wall i want to cover but its foundation is high and extends about 10 inches out what type of climber would grow without much soil or have you another idea and i cant paint it because its an old poor wall ?
My 8 year old 60m Escalonia hedge was badly affected by frost last year. I cut it back strongly in early summer and each bush seems to have had new growth. Is there anything I can do to protect it this year, besides praying?
I planted out my Everlasting Sweet Pea earlier this year. At that time I had very little in my new garden. My Verbena was very small then. Since then I have spotted these sweet pea in other gardens and they seem to be very bushy and strong. I am afraid for my Verbena which gives me great joy and even in the bad summer that we've had has attracted lovely butterflies. Can I move my sweet pea or when should I do that?
I got a gift of this beautiful shrub. It hasn't thrived at all. I started gardening in April of this year. The flowers are beside a beautiful wall of an old walled garden. I am aware that years ago this area had glass houses and in places there may be old foundations. I have cared for and encouraged the shrub but to no avail. My friend has been able to cut hers as cut flowers. I hope you will be able to help me and I would appreciate same.
can i move a florabunda rose to the front of a border to plant taller plants at the back
I sent in a not very good photo of this plant to you and you suggested it might be tritonia; I'm attempting a better shot, as I read that tritonia only flourishes in mild climates and this one has survived two very bad winters! It's about5 inches high. Many thanks for such a great site!
One of the horse chestnuts in the garden died this past winter, and now this one looks like this, which could be early autumn normal activity but I feel it's too early (this started in mid-August) and wonder if it could be chestnut blight I've heard about. If so, is there anything that we could do to save it?
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