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potato varieties if disease has been a problem in recent yearsLift and divide old clumps of rhubarb

Tie in shoots of clematis and climbers to trellis and supportsPlant out chrysanthemums for autumn flowersPrune overgrown Clematis montana after flowering, cutting lanky growth back hard to promote new shoots from the baseLift and divide congested

Deadhead winter-flowering pansies and bedding plants, and pick off damaged leavesDivide congested herbaceous perennialsPrune winter jasmine to cut back flowered shootsTransplant shrubs growing in the wrong place while they're dormantPlant lily

Prune back shoots on mophead and lacecap hydrangeas to a pair of budsTrim all foliage from barrenwort (Epimedium) before flowers start to developPlant lilies in potsPrune mahonia, removing old stems to make room for new growthLift and divide

Carol Klein explains how to hand-pollinate hellebores and guides you through the process, offering practical tips and advice.springMore advice on propagating plantsCarol Klein demonstrates how to cross-pollinate daffodils.Collecting allium seeds.Dividing

Prune gooseberry bushesFork over vacant beds, mixing in compost or well-rotted manurePlant fruit trees trained as cordons, fans or espaliers to make use of limited spaceTie in raspberry and blackberry canes to support wiresLift and divide congested

that there is a correct way to do it in the spring  but I find they divide really easily and if I break a piece off that they root really easily in water or gritty compost.

to see them, by Michael Baron.How to divide and replant snowdropsCreate a woodland flower containerBrowse a variety of plants with blue flowersView spring blooming bulbs

'd also divide them. They should be divided every three or four years. As Alina has said if they're covered they won't flower - are they in the middle of a border? They really do need to get lots of sun to their rhizomes. I have mine on the edge of a

can anybody tell whether in can divide sweet williams and if so how and when Not really a plant suitable  for dividing-you are better of starting new plants off now from seed for flowering in 12 months. As sotongeoff says, they are usually treated