How to Prune Penstemon digitalis?
Deadhead after flowering to maintain vigour and prolong flowering, then cut back to 15cm in late winter or early spring
Penstemon digitalis · Pruning
Penstemon digitalis · Penstemon digitalis
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
Watering: Moderate regular watering, allowing brief slight drying between soakingsSunlight: Full sun · Partial shadeInformation to be completed