Taking root cuttings is a useful method of propagation for plants that won't root easily from cuttings or division. This simple technique involves removing small sections of root from a plant which can be used to propagate a large number of different varieties.
What to do
Take cuttings anytime between September and March.
Use a sharp knife to cut off portions of root from the parent plant.
Slice the roots into sections from 1cm to 7.5cm (0.5in to 3in) in length.
Place root cuttings on a tray of moist compost and then cover with 1cm (0.5in) of compost.
Once the shoots have emerged, lift the young plants from the compost and repot to grow them on.
Time needed
20 minutes to propagate by root cuttings
You will need
Sharp knife
Tray
Compost
Watch Carol Klein's guide to taking root cuttings from perennials
