How to Prune Penstemon Rock Candy Ruby ('Novapenrub')?
Deadhead after flowering to maintain vigour and prolong flowering, then cut back to 15cm in late winter or early spring
Penstemon Rock Candy Ruby ('Novapenrub') · Pruning
Penstemon Rock Candy Ruby ('Novapenrub') · Penstemon Rock Candy Ruby ('Novapenrub')
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 advice
Watering: Regular moderate irrigation, avoid fully dried growing mediumSunlight: Full sun · Partial shadeInformation to be completed