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Sown now in the greenhouse, dahlia seeds will produce young plants ready to plant outdoors in late May to flower this year. Seed companies sell a range of quick-growing bedding strains that are suitable for growing this way. You can also use

Learn how to grow dahlias for cut flowers, in Rachel de Thame's video demonstration. Rachel recommends varieties and shares tips on soil preparation, planting, feeding and staking young plants.early summerMore advice on growing dahliasLift and store

" the centre of Dahlias, grown from seed? I have only recently taken to gardening but get frustrated as all I seem to find is how to grow from seed but not how to get seed from an existing plant. Help! I grew dahlias from seed this year and was delighted

Are you snowed under with seed catalogues? It seems that even before the summer stutters to an end we have to start thinking about next year.I don't usually grow much in the way of annuals in my garden (apart from dahlias and poppies, of course

Sarah Raven demonstrates how to plant up dahlia tubers in trays indoors, to ensure a greater number of cuttings in summer.springMore advice on growing dahliasLift and store dahliasGrowing dahlias from seedTie in dahliasTaking dahlia cuttings video

Follow Chris Beardshaw's step-by-step video advice on lifting and preparing dahlia tubers, for overwintering in a frost-free environment.autumnMore advice on growing dahliasVideo advice on planting dahlia tubersMore tips on lifting and storing

Sarah Raven shows how to take cuttings from dahlia plants in her step-by-step video guide. She also gives a demonstration on how to make a simple propagation tent from a plastic bag, stakes and an elastic band.spring and summerMore advice on growing

At this time of year dahlias are producing stunning showy flowers, but they lose impact if the stems flop forward under the weight of the flowers. To get the best dahlia floral display, tie their stems to canes as they grow to give them some support

to encourage them to flower as much as possible.Growing tipsThe following cactus dahlias varieties will provide you with dramatic flowers all summer long:Varieties to tryA small-flowered cactus dahlia, which blooms from July to October. Height 110cm.Dahlia

.Planting up dahlia tubers, with instruction from Sarah Raven.Growing dahlias from seed.Tying in dahlias.Browse a variety of dahliasChoose spring flowering bulbs