Agastache Species, Purple Giant Hyssop, Lavender Hyssop, Anise Hyssop
Agastachescrophulariifolia

Family: Lamiaceae (lay-mee-AY-see-ee)
Genus: Agastache (ah-gas-TAH-kee)
Species: scrophulariifolia (skrof-yoo-lar-ee-eye-FOH-lee-uh)

Synonym:Hyssopus catariifolius

Synonym:Hyssopus scrophulariifolius

Synonym:Lophanthus scrophulariifolius

Synonym:Vleckia cordifolia

Synonym:Vleckia scrophularifolia

Category
Herbs
Perennials

Water Requirements
Requires consistently moist soil; do not let dry out between waterings

Sun Exposure
Sun to Partial Shade
Light Shade

Foliage
Herbaceous
Shiny/Glossy

Foliage Color

Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Spacing

Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)

Where to Grow

Danger

Bloom Color
Medium Purple

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant

Bloom Size

Bloom Time
Late Summer/Early Fall

Other details

Soil pH requirements

Patent Information
Non-patented

Propagation Methods
From seed; winter sow in vented containers, coldframe or unheated greenhouse

Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored