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Monty Don offers video guidance on repotting a star jasmine, with advice on retaining moisture and limiting root disturbance.summerMore planting advicePotting up plantsGrowing hippeastrumPlanting marsh orchids in bordersPotting on sweet peasBrowse a selection of jasmine plantsVie...

bulbsLarge potsCompostMarch - April20 minutesJuly - AugustHalf-fill a large pot with compost, add five or six lily bulbs, then cover them with more compost. Keep in a greenhouse or sheltered spot while developing, tying tall varieties to canes

Chris Beardshaw demonstrates how to lift and divide congested clumps of autumn-flowering Nerine bowdenii, and suggests growing Nerine sarniensis in a pot. springhalf an hourMore advice on growing flowersBrowse a selection of tender perennial plants

Carol Klein demonstrates how to rejuvenate primula vulgaris by separating newly rooted growth and replanting it.springMore advice on growing flowersCaring for peoniesGrowing lupinsPlanting out cerinthesGrowing dahlias from seed

collection of plants with pink flowersChoose plants suited to acidic soil

/vermiculite John Innes No. 2 compost for potting onMay - August30 minutesSnip off shoots of new growth 10cm - 15cm long. To reduce moisture loss, remove most of the lower leaves so you have a clean length of stem.Use a sharp knife to cut off the base of the stem

the hole 10cm - 15cm deep and place the bulbs at the base of the hole. Fill around the bulbs with soil taken from the hole, ensuring that some of the leaf is above the surface.AdamDon't remove the leaves from your snowdrop bulbs. Leave them to die down

Scarlet beetles (6mm - 8mm long) with black heads eat the leaves, flowers and seedpods of lilies and other members of the lily family. Don't mistake them for ladybirds. Between April and September the beetles lay eggs on the undersides of leaves

A fungal disease weakens the plant and can seriously reduce its flowering performance. The brown spots eventually grow together and develop grey centres. Infection is caused by air or water-borne spores entering the plant through damaged leaves

Most lily bulbs are sold in spring, although some, such as Lilium candidum, are sold in the autumn. This is a time when mould can thrive, so check them carefully when you buy to make sure there are no signs of it - an infected bulb can easily spread the fungus. Lily bulbs don't h...