giant hyssop 'Blackadder'

giant hyssop 'Blackadder' · Propagation

giant hyssop 'Blackadder' · Agastache 'Blackadder'

Grow in well-drained fertile soil in full sun. Excellent drainage is especially important during the winter months. It can suffer during cold wet winters

Watering: Moderate regular watering, allowing brief slight drying between soakingsSunlight: Full sunInformation to be completed

How to Propagate giant hyssop 'Blackadder'?

Root semi-ripe cuttings in late summer and overwinter under cover; propagate by division in spring. This cultivar is sterile