penstemon 'Blue Riding Hood'

Grow in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with dry winter mulch - see Penstemon cultivation for more details.

Deadhead after flowering to maintain vigour. Then cut back to base in spring - see Penstemon cultivation

Propagate by softwood cuttings in early summer and semi-ripe cuttings in midsummer.

May be attacked by slugs, snails, glasshouse red spider mite, and leaf and bud eelworms

Generally disease free. May be affected by powdery mildews