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Edibles Grow Sheets

Anise Hyssop

  • Scientific Name
    Agastache foeniculum
  • General Information

    Anise hyssop is a short-lived perennial with the scent of basil and tarragon and a

    It blooms midsummer into fall. Its spiky, blue blooms and bright green leaves tinged with purple make it a great ornamental. It is in the Lamiaceae or mint family and native to North America.

  • When to Plant

    Plant in spring after last frost or in early summer.

  • Planting

    Plant 18 to 24 inches apart in full sun. It will grow in part shade but will get lanky.

    From seed: Grown easily from seed. To collect seed, allow flowers to dry on plants and bag the flower spikes. 

    Transplants: Easy to move plants and to divide in spring or fall.

    Cuttings: Propagates by cuttings. This is the only way to propagate sterile hybrids like ‘Blue Fortune’, a cross between A. foeniculum and A. rugosa which is Korean hyssop.

  • Soil Requirements

    Prefers slightly acidic soil that drains well.

  • Water Requirements

    Water regularly after planting. Once established, allow soil to dry out between waterings.

  • Fertilizing

    Add compost annually.

  • Pollination

    Anise hyssop is pollinated by bees. It attracts many pollinators, including bees, butterflies, and hummingbirds.

  • Harvesting

    Harvest leaves after dew dries but before heat of day and just before the plants begin to flower.

  • Storage

    Bundle sprigs and hang upside down to dry in a cool, dark space. When leaves are dry, strip from stem and store in a glass jar.

  • Good Varieties for Marin

    Readily available cultivars include ‘Alabaster’ and ‘Black Adder’.

  • Helpful Tips

    Can grow to 4 feet tall so works best in middle or back of perennial beds.

  • Common Problems

    Susceptible to root rot in wet soils.

  • Pests- Diseases & More

    Not usually bothered by pests and diseases.  If aphids, whiteflies, or mites appear, hose off.