Black Adder Agastache Plants produce spikes of purple-violet blossoms that flower all summer and into fall. This low maintenance plant adds eye-popping color and texture flower beds, patio containers, butterfly gardens, cottage gardens, cutting gardens, rock gardens, and costal gardens. Giant Hyssop is heat an drought tolerant and grows well in a wide range of well-drained soils, though they are short lived on damp clay. Black Adder is one of our favorite plants for pollinators!
Common Names: Hummingbird Mint, Giant Hyssop, Rock Anise Hyssop, Licorice Mint
Agastache Companion Plants: Geranium, Monarda, Nepeta
Black Adder Agastache Plant Care: Keep the plant well-watered for the first 4-5 weeks. After that, only water if the plant starts looking droopy. Leave the spent flowers on the plant throughout the winter as birds enjoy eating the seeds. It can be cut back to around 6 inches from the ground in early spring before the new growth starts. This is also a good time to apply fertilizer for the year.