How to Prune giant hyssop 'Astello Indigo'?
Deadhead throughout the season to encourage more flowers
giant hyssop 'Astello Indigo' · Agastache 'Astello Indigo'
Will grow well in well-drained soil preferably in full sun. Although a drought tolerant plant, it might need watering in extreme dry weather spells
Deadhead throughout the season to encourage more flowers