How to Prune cobaea-flowered penstemon?
Remove spent flower spikes to help encourage a long season; cut all stems down to low-growing shoots in mid- to late March
cobaea-flowered penstemon · Pruning
cobaea-flowered penstemon · Penstemon cobaea
Also known as: dew flower
Grow in well-drained alkaline to neutral soil in full sun. Ideal for prairie planting and wildlife areas as well as borders
Watering: Moderate regular watering, allowing brief slight drying between soakingsSunlight: Full sunInformation to be completed