Discover how to propagate phlox from root cuttings, below.
Root cuttings of phlox can be taken before the plants start to send up their spring shoots.
You Will Need
Gritty compost mix made from equal parts grit or perlite and potting compost
Label and pencil
Remove a few of the largest roots, as close to the base of the stem as possible, where’s there’s plenty of tissue ready to produce shoots.
Cutting off pieces of root
Make the cuttings about 4cm long and take a nick out of the base (the end furthest from the root tip) so you know which way up they should be planted.
Cut the root pieces to size
Insert the full lengths of root vertically into firmed compost, nicked end at the top, then cover with a good layer of grit and water in. Each cutting should produce a shoot in spring.
Insert the root cuttings into compost
Improving phlox blooms
Have a go at improving the flowering performance of phlox by carrying out the ‘Chelsea chop’. In late May, use sharp, clean secateurs to cut back the stems, making a sloping cut just above a leaf joint.