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, preventing the flower from opening. An invisible soft, slimy layer of mycelium then fuses the petals together. The problem is most acute on roses with a multitude of thin petals.Apparently healthy rose buds develop and fatten but fail to open. They eventually

Watch Monty's video guide to planting shrub roses, and pick up tips on planting depth, preventing root rock and deterring aphids.spring or autumnMore advice on caring for rosesAdvice on pruning shrub rosesHow to plant a rose bushPlant a rambling

Learn how to plant a rose with Monty Don's video advice on how to avoid problems with suckers and root rock.spring or autumnMore advice on growing rosesMonty on pruning shrub rosesPlanting a rose video projectPlanting a rambling rose against a tree

using a pruning saw. For large branches, leave 1cm - 2cm where it joins the main stem, so that the tree or shrub can heal the wound.More pruning advicePruning shrub roses, with advice from Monty DonChris Beardshaw gives tips on pruning viburnum plants

of them. Bare-root rose plantSpadeForkBamboo caneGranular fertiliser, such as chicken manureDecember - mid-March 20 minutes for each rose June - AugustDig out a hole in the soil to the depth of a garden spade and the same width. Put the soil to one side

Roses can be grown successfully from cuttings and will grow on to make good flowering plants. Choose healthy stems of the current season's growth and follow our step-by-step advice to be sure of success. Roots will be produced over the winter months

The rose leaf rolling sawfly injects a chemical into young rose leaves to cause them to curl protectively around her eggs. Within a week the eggs hatch into green caterpillars that start to eat their home. In mid-summer, leaving behind skeletonised

fallen leaves. When pruning, cut out any stems with blackspot on. In late-winter, spread a thick layer of mulch around the base of the affected plant to prevent rain splashing soil-borne spores on to new spring growth. Grow rose varieties

Rose powdery mildew is a fungus that produces airborne spores from infected stems or buds on roses. After overwintering on your plants, the disease is most likely to flare up if the roots are in dry soil and the leaves are in humid air - conditions

causing the leaves to drop, is followed by black pustules on the leaves in late summer. By autumn it's almost inevitable that the leaves will drop off.Promptly prune out any infected stems and destroy them, along with any infected leaves. Grow roses