Agastache x 'Black Adder'
Also called Black Adder Hyssop
More About Agastache x 'Black Adder'
- Dark purple-black buds open to violet-blue flowers
- Upright, clump forming habit
- Licorice-scented foliage
- Bloom Time: July to September
Licorice-scented foliage can be used in teas and added to salads.
Cross between A. rugosum and A. foeniculum
Hyssop Growing and Maintenance Tips
Grows best in full sun and an average to dry, well-drained soil. If desired, pinch main stems in June just before the buds form, to keep the plant compact. After flowering, remove old flowers to promote a second flowering. No serious pest or disease problems.
Agastache x 'Black Adder' Characteristics
Soil MoistureAverage to Dry Soils
Moist to Average
Flowering TimeLt. Sum-Fall