Home Agastache x 'Black Adder' ~ Black Adder Giant Hyssop
Agastache x 'Black Adder'
Black Adder Giant Hyssop
Black Adder Giant Hyssop is an upright long-blooming perennial with aromatic blue-green foliage. Densely packed upright spikes sporting near-black buds open to smoky violet flowers from early summer until frost attracting butterflies and hummingbirds. Flowers best in full sun and moist well-drained soils.
Type: |
|
Height: |
2' - 3' |
Spread: |
1.5' - 3' |
Spacing: |
1.5' |
USDA Hardiness Zone: |
5 - 9 |
Culture: |
|
Bloom Color: |
Purple |
Season of Interest: |
MAINTENANCE NEEDS: Low maintenance. Crown and root rot may occur in poorly drained soils. No serious pests or disease issues but watch for powdery mildew, wilt, and rust.
LANDSCAPE USES: Accents or Group Plantings, Borders, Woodland Gardens, Naturalized Areas, Foundational Plantings, and Containers.
COMPANION PLANTS: Coneflower, Daylily, Russian Sage
IMAGES: Photo by CAJC: in the PNW, Hyssop, (2) Photo by David J. Stang, Agastache Black Adder 4zz, CC BY-SA 4.0
*As plants have ranges in appearance they may not appear as the images shown.
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