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You can easily propagate oriental poppies by taking root cuttings. They make perfect candidates for this propagation method as it exploits the plant's propensity to reproduce itself from every scrap of root left behind when plants are moved. Once

March - September10 minutes to sowharvest April - NovemberUse a line to mark out the row. Sowing in a straight line allows you to identify where your rocket seedlings are and which are the weed seedlings to pick off. You'll find a row 1m - 2m long is enough to get

/vermiculite John Innes No. 2 compost for potting onMay - August30 minutesSnip off shoots of new growth 10cm - 15cm long. To reduce moisture loss, remove most of the lower leaves so you have a clean length of stem.Use a sharp knife to cut off the base of the stem

the hole 10cm - 15cm deep and place the bulbs at the base of the hole. Fill around the bulbs with soil taken from the hole, ensuring that some of the leaf is above the surface.AdamDon't remove the leaves from your snowdrop bulbs. Leave them to die down

Seed compostPlastic potsVermiculiteJanuary - April20 minutesFill your pot with seed compost, leaving a couple of centimetres below the rim. Scatter the seeds evenly over the compost and cover with vermiculite. Water well, then cover the pot with a plastic bag

.Verbena plantsSharp knife10cm potsFree-draining compost (multi-purpose and perlite mix - see Adam's tip)Rooting hormone (liquid or powder)Clear polythene bags and rubber bandsJuly - September45 minutesTake cuttings in the morning when shoots are at their firmest

There is a range of easy-to-grow, climbing annuals that will flower non-stop from June until the frosts, producing striking blooms and sculptural leaves. Because they grow 1.8m to 3m or more in a season, half the joy is amassing so much plant from

Alliums are spectacular plants and it's worth saving a few seeds to sow in the spring to grow some more for the garden. The seeds will germinate quickly and reach flowering size in a couple of years.SecateursPaper envelopesSeptember - October20

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

boardPotsFree-draining compost, equal parts multi-purpose and perliteClear polythene bagsJune - September1 hourRemove a healthy leaf, lay it on the cutting board and, using a clean, sharp knife, cut it into pieces the size of a large stamp. Each portion