How to Fertilize Penstemon 'Blackberry'?
Balanced perennial feed every four weeks spring through summer growth
Penstemon 'Blackberry' · Fertilizing
Penstemon 'Blackberry' · Penstemon 'Blackberry'
Grow in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with dry winter mulch. See penstemon cultivation
Watering: Moderate regular watering, avoid prolonged drought and stagnant waterloggingSunlight: Full sun · Partial shadeInformation to be completed