Penstemon plants can be propagated by division, cuttings, or seed

DivisionĀ 

  1. Dig up a mature penstemon in early spring.
  2. Cut the root system apart so that each division has some roots.
  3. Plant the divisions in the garden or in containers.

Cuttings

  1. Take cuttings from late summer to early autumn.Ā 

Use sharp secateurs to cut the stem just below a leaf joint.  Remove the lower leaves, leaving only the two at the tip.  Insert the cuttings into compost in a pot.  Water well and keep the cuttings in a humid environment.  Place the cuttings in a sheltered spot in the garden or a cold frame.  When the roots are well developed, transplant the new plants into a soil mix. 

SeedĀ 

  1. Start plants from seed.
  2. The progeny may not be identical to the parent plant.

Other tipsĀ 

  • Use clean materials to avoid disease.
  • Keep each species separate because they root at different rates.
  • Provide warmth, light, and some air movement.
  • Keep the cuttings from wilting.