How to Fertilize Penstemon 'Bredon'?
Balanced perennial feed every four weeks spring through summer growth

Penstemon 'Bredon' · Penstemon 'Bredon'
Grow in fertile, moist but well-drained soil in full sun or light shade in a position sheltered from frosts and drying winds; in autumn protect with a dry mulch; for more advice, see penstemon cultivation
Balanced perennial feed every four weeks spring through summer growth