How to Prune penstemon 'Geoff Hamilton'?
Deadhead after flowering to maintain vigour and prolong flowering, then cut back to 15cm in late winter and early spring
penstemon 'Geoff Hamilton' · Pruning
penstemon 'Geoff Hamilton' · Penstemon 'Geoff Hamilton'
Grow in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with a dry winter mulch. See Penstemon cultivation for further information
Watering: Moderate regular watering, allowing brief slight drying between soakingsSunlight: Full sun · Partial shadeInformation to be completed