Plant Name:  Agastache hyssop ‘Black Adder’
(A cross between A. foeniculum & A. rugosum
Common name: Black Adder Giant Anise Hyssop
Plant Type: Herbaceous Perennial
Plant Height:  2’ – 3’
Spread:  1.5’ – 2’
Bloom Time: June – Frost
Flower Color:  Smokey Red Violet Flowers Emerge from Nearly Black Buds.
Exposure:  Full Sun to Part Shade
Soil Requirements: Well-Drained
Water Needs: Medium
Attributes: Tolerates Deer; Fragrant; Attracts Bees, Hummingbirds, & Butterflies.
Note:  Deadhead Spent Flowers to Promote Additional Bloom.  Leave Leaf & Flower Stems for Protection Over Winter.  Crown/Root Rot may occur in poor draining soils. 
Uses: Long-Blooming for Summer Border; Butterfly or Cottage Gardens; Good Cut Flower.
Native to:  North America
Oregon Native:  NO
USDA Hardiness Zone:  6 – 9

Submitted by: Viki Ashford