How to Prune Yellow giant hyssop?
(Agastache nepetoides)
Yellow giant hyssop, also known as Yellow giant hyssop
This perennial herb, recognized for its towering spires of yellow flowers, thrives with regular pruning to encourage bushier growth and more blooms. For yellow giant hyssop, prune in early spring to remove any dead or damaged growth. Deadheading spent flowers during the summer can promote a second bloom. In fall, cutting back the plant after flowering can prevent self-seeding and maintain a tidy appearance. Pruning also promotes good air circulation, reducing the risk of fungal diseases.