Black Adder Giant Hyssop
Agastache x 'Black Adder'
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- Locally Grown
- Guaranteed Handled with Care
Black Adder Giant Hyssop, also known as Agastache 'Black Adder', is a perennial plant that is known for its striking, dark blue-purple flowers and its attractiveness to pollinators.
This plant typically grows to a height of 2-3 feet with a similar spread. It prefers full sun and is adaptable to a variety of soil conditions, but it thrives best in well-drained, fertile soils. Black Adder Giant Hyssop is also drought-tolerant once established, making it a great choice for xeriscaping or low-water gardens.
The flowers of Black Adder Giant Hyssop are dark blue-purple and appear on tall spikes from midsummer to early fall. The leaves are aromatic and have a minty fragrance when crushed.
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Type: |
Perennial |
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Orgins: |
N. America |
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Height: |
2' - 3' |
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Spread: |
1.5' - 3' |
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Spacing: |
1.5' |
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USDA Hardiness Zone: |
5 - 9 |
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Culture: |
Full Sun, Part Sun |
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Bloom Color: |
Purple |
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Season of Interest: |
Summer, Fall |
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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Local shipping areas include thru out all of Maryland, Northern Virginia, Pennsylvania, Washington DC, areas not listed can be arranged as well.
