Flowers

Although sowing may be weeks or even months away, do not delay buying seed, as popular varieties are first to go. Store seed in airtight containers in a cool place. Delphiniums are among the easiest perennials to grow from seed. Pacific Giants and Shogun will grow to 1m or more, while

Delphinium grandiflorum will reach just 30cm. Delphiniums come in shades of blue, pinks and mauves, as well as white. Seed needs warm conditions (18degC to 20degC) to germinate, so do not rush to sow it. If the weather is fine and the soil not waterlogged, Michaelmas daisies, delphiniums, penstemons and phlox can be broken up then replanted in wellcomposted soil to give better flowers over the next two or three seasons. Protect from slugs and snails by surrounding the plants with dry sawdust. To divide these hardy perennials, lift the clumps with a fork, then use a sharp spade to slice through the plant.