Agastache foeniculum

Agastache foeniculum

Anise Hyssop


Agastache foeniculum

Anise Hyssop

This exceptionally hardy native species is easy to grow and long blooming; often used by native bees as a nectar source. Tall, bright lavender blue flower spikes on strong, upright stems create a beautiful vertical accent in perennial borders and native prairie plantings. Short lived perennial but reseeds reliably.

Plant Details

  • Zone: 3 - 8
  • Height: 24-48"
  • Spread: 18-36"
  • Exposure: Full Sun, Part Shade
  • Soil Moisture: Low Water Needs, Moderate Water Needs
  • Drought tolerant: Yes, Once Established
  • Bloom time: Early Fall, Early Summer, Late Summer, Midsummer
  • Foliage Color: Green Shades
  • Flower Color: Blue Shades, Purple Shades
  • Fragrant: Yes
  • Good Cut Flower: Yes
  • Native: Native Species
  • Deer resistant: Yes
  • Rabbit resistant: Yes
  • Bee-friendly: Yes
  • Attracts butterflies: Yes
  • Attracts hummingbirds: Yes
  • Groundcover: No
  • Roy Diblik Favorite: No

Plant Details

  • Zone: 3 - 8
  • Height: 24-48"
  • Spread: 18-36"
  • Exposure: Full Sun, Part Shade
  • Soil Moisture: Low Water Needs, Moderate Water Needs
  • Drought tolerant: Yes, Once Established
  • Bloom time: Early Fall, Early Summer, Late Summer, Midsummer
  • Foliage Color: Green Shades
  • Flower Color: Blue Shades, Purple Shades
  • Fragrant: Yes
  • Good Cut Flower: Yes
  • Native: Native Species
  • Bee-friendly: Yes
  • Deer resistant: Yes
  • Rabbit resistant: Yes
  • Attracts butterflies: Yes
  • Attracts hummingbirds: Yes
  • Groundcover: No
  • Roy Diblik Favorite: No

Grower Information

Agastaches grow and flower best in full sun, though they will tolerate light shade. Provide consistent moisture but do not overwater; good drainage is a necessity. Pinch plants early for more compact growth and an improved flower display. Long lasting blooms provide an extended sales window. A favorite of bees, butterflies and hummingbirds; ideal for pollinator gardens.

  • PowerPlug Size(s): 32s
  • Optimal Planting Time: Spring
  • Retail Sales Window: Fall, Summer
  • Moisture in Production: Average, Low
  • Requires Shade in Production: No
  • Vernalization Required for Bloom: No
  • Vernalization Beneficial: Yes