Black Adder Hummingbird Mint
Agastache 'Black Adder'Black Adder Hummingbird Mint is a vigorous, long-blooming perennial prized for its tall spikes of deep violet-blue flowers, aromatic foliage, and outstanding pollinator appeal. Beginning in mid-summer and continuing well into fall, its dark flower spikes are covered with nectar-rich blooms that attract hummingbirds, butterflies, honey bees, and other beneficial pollinators. The fragrant green foliage releases a pleasant minty-anise scent when brushed, adding another layer of interest to the garden.
Its upright, clump-forming habit provides height and movement in sunny borders, pollinator gardens, cottage gardens, and naturalistic plantings. The dramatic flower spikes create an excellent vertical accent while remaining deer and rabbit-resistant due to the aromatic foliage.
Typically growing 30 to 36 inches tall and 18 to 24 inches wide, Black Adder is an excellent choice for mixed perennial borders, mass plantings, and specimen plantings. Its exceptional heat and drought tolerance make it a dependable performer even during hot, dry summers.
This perennial thrives in full sun and well-drained soil. Once established, it requires very little supplemental watering and performs best in soils that are not overly rich. Excellent drainage is essential, especially during winter.
Care Instructions:
Planting: Plant in full sun in well-drained soil.
Soil: Prefers average to lean, well-drained soil.
Watering: Water regularly during establishment. Once established, water only during prolonged drought.
Fertilizing: Fertilizer is rarely needed. Avoid overly rich soils that encourage weak growth.
Pruning: Remove spent flower spikes to encourage continued blooming. Cut plants back in early spring before new growth begins.
Spacing: Space plants 18–24 inches apart for mature growth and airflow.
Maintenance: Provide excellent drainage and avoid wet winter soils for best long-term performance.
Its fragrant foliage, months of violet-blue blooms, and unmatched ability to attract hummingbirds make Black Adder Hummingbird Mint one of the best perennials for pollinator-friendly landscapes.
