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Description
Agastache Black Adder is a perennial herbaceous plant that is native to North America. It is also known as Giant Hyssop or Anise Hyssop due to its anise-like fragrance. The plant grows up to 3 feet tall and 2 feet wide, with spiky dark purple flowers that bloom in mid to late summer. The flowers attract bees, butterflies, and hummingbirds, making it a great addition to any garden.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Agastache |
Appearance
Agastache Black Adder has dark green, aromatic leaves that are lance-shaped and toothed. The leaves are about 3 inches long and 1 inch wide. The stem is square and hairy. The flowers are arranged in dense spikes and are about 1 inch long and wide. They have a dark purple color and are surrounded by black bracts. The plant blooms from mid to late summer and can continue blooming until fall.
Care Guide
Agastache Black Adder is a low-maintenance plant that requires full sun to partial shade and well-drained soil. It can tolerate drought and heat, but it requires regular watering during the first growing season to establish a strong root system. Fertilize the plant once a month during the growing season using a balanced fertilizer. The plant is hardy in USDA Zones 5-10.
Common Pests & Diseases
Agastache Black Adder is generally pest and disease-resistant. However, it can be susceptible to root rot if planted in poorly-drained soil. It can also be affected by powdery mildew, which can be treated with a fungicide.
Habitat
Agastache Black Adder is native to North America and can be found growing in prairies, meadows, and along roadsides. It prefers well-drained soil and full sun to partial shade. The plant is drought-tolerant and can survive in hot and dry conditions.
Question and Answer
Q: How often should I water Agastache Black Adder?
A: Water the plant once a week during the growing season, and reduce watering during the winter months.
Q: Can Agastache Black Adder be grown in containers?
A: Yes, the plant can be grown in containers as long as they are well-drained and the plant receives enough sunlight.
Q: How do I propagate Agastache Black Adder?
A: The plant can be propagated through division or by taking stem cuttings in the spring.
Q: Can Agastache Black Adder attract pests?
A: The plant can attract bees, butterflies, and hummingbirds, but it is generally not attractive to pests.
Related Plants
- Agastache Blue Fortune
- Agastache Golden Jubilee
- Agastache Acapulco Orange
- Agastache Raspberry Summer
References
- https://www.gardenia.net/plant/agastache-black-adder
- https://www.gardeningknowhow.com/ornamental/herbs/hyssop/black-adder-hyssop.htm
- https://www.gardendesign.com/plants/agastache.html
