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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

. Cut dahlias down to the next bud and remove banana and canna leaves at their base.Water these thirsty plants regularly, and give them a liquid feed once a fortnight.Transplant undercover or provide protection over winter.Growing exotic plants

, with yellowy pink blooms. Height 110cm.Dahlia 'Preference'Large-flowered cactus type, needs staking to support stems. Height 120cm.Dahlia 'Reputation'Giant-flowered semi-cactus dahlia. Grow in rich soil for best results. Height 140cm.Dahlia 'Rev P Holien

I love early September: the sun is still hot but the nights are not stifling. The majority of plants have flowered and faded away but there are still some, particularly the dahlias, that are flowering their little heads off. There was a time when

Watch Sarah Raven as she plants lupins and shares her tips on soil acidity and drainage.More advice on growing flowersCreating a cutting patch video project.Planting out cerinthes.Caring for peonies.Growing dahlias from seed.

Learn how to plant colchicums, and pick up advice on soil enrichment, drainage and corm planting depth, in Chris Bearshaw's video guide.summerMore advice on plantingHow to plant in wavesGrowing dahlias from seedBrowse a variety of crocuses

. Foxglove14. Heather15. Honeysuckle16. Lavender17. Poppy18. Pussy willow19. Raspberry20. Red Campion21. Rosemary22. Scabious23. Sea Holly24. Sunflower25. Teasel26. Thistles27. Viper's bugloss28. WisteriaI'm growing 21 of the above plants in my garden

are growing stronglyMore on growing summer perennialsHow to grow climbing glory vinePlant summer-flowering bulbs in potsGrow dahlias for cut flowersGrow exotic plants from seedGrow lilies from bulbilsPlant eucomis

on growing summer displaysSowing sunflower seeds, demonstrated by Monty DonSarah Raven gives advice on taking dahlia cuttingsPlants for late-summer colourCreating a daisy window box

being far hardier.Another trick when growing them in the garden is to plant deeply – perhaps 20cm or more down – so that they’ll get through winter without being frozen. You can often do the same with dahlias and gladioli, perhaps with just a mulch over