Plant Library

Agastache foeniculum Blue Hyssop

Common Name: Agastache foeniculum

Botanical Name: Agastache

Variety: Blue Hyssop

Blossom Color: Lavender-Blue

Bloom Time: Jun-Sep

Zone: 3 to 8

Exposure: Full Sun to Part Shade

Mature Height: 24-48"

Mature Width: 18-36"

Notes: Tall, bright lavender blue flower spikes on strong, upright stems. Often used by native bees as a nectar source. 24-48 inches. Native wildflower. Butterflies. Hummingbirds. Bees. Reseeds readily.