Guide to growing Bowman's root (Gillenia)
Gillenia are a genus of hardy perennial shrubs that reach a height of about 1.2 meters.
They bloom in the summer when they carry white stellar flowers.
A commonly grown Gillenia in the garden is Bowman's Root. Latin names include Gillenia trifoliata and gillenia stipulata.
How to grow Bowman's root
It is best to first sow Bowman's roots in flats. Sow the seed at the beginning of autumn at a depth of 7mm; cover the flat with glass and sink into a shady part of the garden; keep moist. Once Bowman's roots germinate (about three weeks) and sprout transplant them (late autumn) into their final location.
Gillenia species such as Gillenia trifoliata should be spaced at about 45 to 60cm apart and can grow in sunny and partially shaded parts of the garden. Ideally they will have a rich, acidic (pH 5 to 6) woodland soil in which to grow.
How to look after Gillenia
Gillenia likes to grow in a moist soil so keep well watered; supply a permanent mulch; stake taller species. Once flowering has finished cut back the stems. If you require more plants then propagate Gillenia in the spring or autumn by division.