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. Practice the basics of rooting softwood cuttings with our step-by-step advice and you'll be able to use these skills for more complex cuttings. 10cm flower potCuttings compostPerlite (optional)Sharp knifeRooting hormone liquid (optional)Polythene bag

Irises can become congested over time, which tends to inhibit flowering. This can be remedied by lifting and dividing their rhizomes to give them a little more space. Wait until flowering is over before dividing the iris clump, discarding any old

and replant.AdamAlthough the rhododendron layer will have rooted by autumn, to give it the best chance of survival, wait until spring before you separate it from the parent plant.More advice on propagating plantsDividing hostas, with video advice from Monty

Roses can be grown successfully from cuttings and will grow on to make good flowering plants. Choose healthy stems of the current season's growth and follow our step-by-step advice to be sure of success. Roots will be produced over the winter months

Growing from seed is a simple and economical way of raising new plants for your garden. First master the techniques by sowing annuals in spring that will reward you with flowers in summer, then use these basic skills to grow perennials, trees

use this technique to grow flowering perennials and biennials as well as hardy annuals to brighten up you beds and borders. Sow into weed-free soil that has been dug, forked and raked to create a fine surface structure or 'tilth'. SeedsArea of prepared

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

Summer is the ideal time to take leaf cuttings from your houseplants. A single leaf can produce many young plants, and this technique is particularly useful for foliage plants such as Begonia rex.Healthy begonia plantClean, sharp knife and cutting boardPotsFree-draining compost, ...

unique features. Plants can be pollinated in pots in coldframes or unheated greenhouses, or outside in the open garden. It is warmer work when done in the greenhouse, but pollinated flowers are more prone to rotting when indoors. Hellebore plants

Save money by collecting and storing seed of your favourite hardy annuals, to sow next year. Saving seed from pot marigold, Calendula officinalis, couldn't be easier. Ensure you allow the seedheads to fully develop on the plant before collecting them (they will turn brown and pap...