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Agastache foeniculum (native plant) / Anise Hyssop

    Agastache foeniculum (native plant) / Anise Hyssop

    Agastache foeniculum, also known as Anise hyssop, is a beautiful herbaceous perennial that produces a profusion of violet-blue flowers on tall spikes above its anise-scented foliage.

    Product Characteristics:
    • Height: 2-4 feet
    • Spread: 1-2 feet
    • Flower color: Violet-blue
    • Flowering period: Summer to early fall
    • Foliage: Green, anise-scented leaves
    • Sunlight requirements: Full sun to partial shade
    • Soil requirements: Well-draining, fertile soil with average moisture
    • Hardiness Zone: 4

    • As a stunning border plant in garden beds or borders
    • As a fragrant addition to herb or pollinator gardens
    • As a cut flower for indoor arrangements
    • As an ingredient in teas or other culinary uses


    • Attracting bees, butterflies, and hummingbirds to the garden
    • Providing a fragrant scent to the garden and indoor arrangements
    • Having a long flowering period, providing interest throughout the summer and early fall
    • Being deer and rabbit resistant

    Companion Plants:

    • Salvia nemorosa 'May Night' : This perennial produces spikes of dark purple flowers that contrast beautifully with the lavender-pink blooms of Agastache foeniculum. Both plants prefer well-drained soil and full sun, making them an ideal pairing in a sunny border.
    • Panicum virgatum : The upright habit and fine texture of switchgrass create a striking contrast with the rounded form and fuzzy foliage of Agastache foeniculum. In addition, switchgrass is drought-tolerant and provides winter interest in the garden, making it a functional and aesthetic companion plant.
    • Echinacea purpurea Magnus : The bold, cone-shaped flowers of purple coneflower provide a focal point in the garden and harmonize well with the airy blooms of Agastache foeniculum. Both plants are drought-tolerant and attract pollinators, making them a beneficial pairing for the garden ecosystem.

    Care Instructions:

    • Plant in well-draining soil and water regularly, especially during dry spells
    • Deadhead spent flowers to encourage more blooms
    • Cut back in late fall or early spring to encourage new growth
    • Divide every few years to prevent overcrowding

    Final Thoughts:
    Agastache foeniculum is a versatile and beautiful addition to any garden. With its stunning violet-blue flowers, fragrant foliage, and numerous benefits to pollinators and gardeners alike, this perennial is sure to provide interest and enjoyment for years to come.