How to Fertilize Zahn's gromwell?
Balanced perennial feed every four weeks from spring through summer
Zahn's gromwell · Fertilizing
Zahn's gromwell · Lithodora zahnii
Grow in well-drained, preferably alkaline to neutral soil in full sun
Watering: Moderate regular watering, allowing brief slight drying between soakingsSunlight: Full sunInformation to be completed