penstemon 'Pensham Saint James's'

Grow in fertile, well-drained soil, preferably in in full sun. In cold areas, protect plant overwinter with a dry winter mulch

Deadhead after flowering to maintain vigour

Propagate by softwood or semi-ripe cuttings in early summer

Generally trouble-free but may be attacked by slugs, snails and chrysanthemum eelworms

May be subject to a downy mildew