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one small, inexpensive seed.Sweet peas aside, annual climbers are rarely seen in borders, but they're easy to grow from seed with a heated propagator in a greenhouse (or a frost-free porch or indoor window sill).Annual climbers are often grown as fast

Several varieties of lily form small bulbils on their stems from late summer to autumn, from which new plants can be propagated. If they fall off the plant, they rarely grow into large plants, so it's best to remove the bulbils by hand and plant

in seed tray modules.Water in cuttings from above to settle compost around their stems. Place pots in a cold frame in a sheltered, shaded area, indoors in a propagator or simply cover with a plastic bag to retain the moisure.After a few weeks, gently

Summer is the ideal time to take verbena cuttings. Overwinter the semi-hardy perennials in a frost-free place and you'll have a fresh, healthy supply of verbena plants next year to replace any in the garden that have been killed by frost

in the year, to encourage them to put on growth before winter sets in. Space them at 10cm intervals in rows 20cm apart, and water well. If you don't have seedlings to plant out, you can usually buy plug plants from garden centres and mail order companies

You can never have enough lettuce in summer, but sowing directly into the soil takes up valuable space in the garden. Keep a regular supply growing by sowing seeds in lengths of plastic guttering: short, 1m lengths are convenient and easy to handle

Snowdrops transplant well when they are in leaf and even in flower and the bulbs can also be divided at the same time - a method known as 'in the green'. You can then replant new clumps of snowdrops in other places around the garden; it's a simple

Tomatoes are easy to grow from seed and should germinate within two weeks. Compact cherry varieties can be grown in pots and hanging baskets, while larger, cordon types are more suited to being raised in the ground or in growing bags. Tomato seedsSeed compostPlastic potsVermiculi...

Rocket is best sown between March and September but even late sowings can produce a good crop of spicy, peppery leaves for salads. Keep nipping off the rocket leaves and it will provide rich pickings for weeks, and ensure a continual supply by making successive sowings throughout...

Watch Carol Klein as she guides you through the process of propagating delphiniums, campanulas and lupins; from taking basal cuttings and potting them on, to how to stake them.springMore advice on propagating plantsTaking begonia leaf cuttings