How to Fertilize Penstemon alpinus?
Balanced perennial feed every four weeks from spring through summer
Penstemon alpinus · Fertilizing
Penstemon alpinus · Penstemon alpinus
Grow in a gritty, sharply-drained soil in full sun
Watering: Moderate regular watering, allowing brief slight drying between soakingsSunlight: Full sunInformation to be completed