Questions tagged [roses]

Woody perennial, genus Rosa, grown for attractive flowers.

Roses are woody perennials, family Rosaceae, genus Rosa. Rosa contains over 100 species. Plants are typically erect shrubs, or climbing or trailing plants. Stems usually have sharp thorns. Flowers are usually large and showy, often with notable perfumes. Roses hybridize easily, combined with their popularity, this has resulted in large numbers of cultivars being produced for their colors, scent, and plant-shape.

As well as being grown for their visually striking flowers and perfume, rose fruit ("rose hips") are generally edible and contain a number of vitamins including vitamin C. Rose hips are typically consumed in preserves, tea, or syrup.

Use this tag for all questions about growing roses and diagnosing problems with them.

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Green-brown mass under roses

Please help me with identification of this green-brown mass in my garden. It looks rather like slimy, part-rotted fruit, but I have noticed it under roses in both spring and autumn. Is it a weed or what? Do I need to worry about it (it seems to be…
Peter Bill
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How much compost should I add to a clay soil for roses?

A few months ago I removed a lot of over grown shrubs; the soil is clay based topsoil on top of solid clay. The top soil is about one spade deep. I don’t think the garden has had any compost for many years. I am going to double dig before…
Ian Ringrose
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Is Zephirine Drouhin rose completely thornless?

An advertisement of Zephirine Drouhin rose said that this rose was disease resistant, shade tolerant, alkaline soil tolerant, pollution tolerant, more floriferous than other varieties, and completely thornless. I suppose they are probably being…
J. Musser
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How to get rid of spider mites on roses?

My girlfriend got a rose to sprout and then planted. It grew nicely but now spider mites are coming back all the time. She tried a BAYER spray for mite control but they are coming back every time she has the rose plant inside the house.
uwe
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Insect Friend or Foe on Rose, Santa Cruz, California

I noticed this small (~1cm long) insect on my rose bush in Santa Cruz, California, U.S.A.. I also noticed that all the scales, usually infesting my rose, were missing. I was pleased and am currently attributing this attrition to the new visitor. Any…
J.P.M.
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How to save roses - commercially potted gift ones with few roots?

I was given a pot of (flowering) roses which I actually like and would want to keep and plant in my garden. In this tiny pot there are 4 plants; each one has only a few roots as a quick inspection showed. What would I need to do to save these? I…
Patrick B.
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Can I add commercial roses to my compost pile?

I'd like to add commercial roses to my compost pile, but don't know if I can. I'm not sure what kind of chemicals store bought roses are usually treated with. Bonus question: Can I dump the water in the vase on the pile as well (with the little…
Philip
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What rose would be best for hip production?

I am looking for a rose that produces a good crop of large hips. It has to be winter hardy and relatively carefree , but I will be able to prune, mulch, and, water it. It also will have to be disease resistant as I don't use chemicals. I found a…
J. Musser
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When is the best time to plant Knockout Roses in North Georgia?

I live in North Georgia (USA) and I want to grow a rose bush. Knockouts are sold around here all the time and are fairly cheap, and I'm wondering when is the best time to put one in the ground? I started one this past spring and lost it to a…
wax eagle
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What's the best pot size for rose seeds germinated in the refrigerator?

I have taken rose seeds from my garden and put them in the fridge between moist paper towels. Does anybody know what size pot I should put the rose seeds in that have germinated in the fridge?
codeman
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How to keep my roses fresh?

I got a few roses from my friends and I keep them in my office. I've changed their fresh water for three days but they won't stop fading. What can I do to extend their flowering? Some people tell me to put a little salt in the water, would this…
user3206
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How to overwinter potted rose-cuttings?

Similar this question I potted rose-cuttings using the described in BBC's Gardener's World (cutting August-shoots in 20cm long "sticks" and place them into drained soil). I did this in the end of August and two of the stems started to build…
Patrick B.
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roses: re-plant or salvage?

We recently moved into a new house with existing rose plants, many of which are diseased. The obvious problems are the orange spots that puff into dust when you touch the plant, and black / brown patches on the leaves. I tried a compound from Bayer…
Jeffrey Blattman
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Roses in clay pot started to go bald

I purchased some roses in clay pots. They were very fresh and beautiful but after a while they were starting to go bald and their leaves turned yellow. What should I do? They are in open air and have 6 hours per day direct sunlight. They are watered…
Arash Mousavi
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Please can you help me identify a rose with sentimental value?

My late mother had a rose that was grown as a cutting from her grandmothers rose garden. I am very new to gardening, but I have managed to grow several cuttings (luck > judgement). It would be wonderful to know more about the rose. Especially if…
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