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Agastache x Black Adder

Hyssop (Black Adder Hyssop)

This plant brings a new colour to the garden palette with its long racemes of smoky, violet-blue flowers that never seem to stop. It will remain compact in a container. Deadheading will encourage blooming.

  • »  Dark purple-black buds open to violet-blue flowers
  • »  Upright, clump forming habit
  • »  Licorice-scented foliage
  • »  Bloom Time: July to September

1gal
$20.83
Exposure
• Full Sun
Soil Moisture
• Moist to Average
• Average to Dry Soils
• Well-drained
Attracts Wildlife
• Attracts Butterflies
• Attracts Hummingbirds
Growth Rate
• Fast
Critter
• Deer Resistant
• Rabbit Resistant
Attributes
• Cut Flower/Foliage
• Dried Flower/Foliage
• Edible
• Drought Tolerant
• Fragrant
• Long Blooming
• Low Maintenance
Flowering Time
• Summer
• Lt. Sum-Fall
Habit
• Clumping
• Upright
Foliage Color
• Green
Landscape uses
• Naturalizing
Planting instructions
• Container Plants
Additional Information about Agastache x 'Black Adder'

Licorice-scented foliage can be used in teas and added to salads.
Cross between A. rugosum and A. foeniculum

Growing & Maintenance Tips for Agastache x 'Black Adder'

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.