1. How to Grow and Care for Agastache - The Spruce

  2. Purple Giant Hyssop – An Amazing Pollinator Magnet

  3. Purple Giant Hyssop - Prairie Moon Nursery

    Purple Giant Hyssop sets soft plumes of the palest purple flowers that top out at 6 feet, soaring above most other plants in the garden. The individual blossoms open over a period of several weeks summer through fall.

  4. Agastache scrophulariifolia - Wikipedia

  5. How to Grow and Use Hyssop - Gardener's Path

  6. Agastache rugosa 'Golden Jubilee' - Plant Finder

  7. Agastache 'Purple Haze' - Plant Finder - Missouri Botanical Garden

  8. Agastache scrophulariifolia (Purple Giant Hyssop)

    Flower: Flower spike 1 to 6 inches long of ¼ inch long tubular flowers, each with 4 long stamens. Color ranges from lavender to pale pink and occasionally white. The lower lip of the flower tube has 3 lobes; the center one is widest. …

  9. Agastache (Giant Hyssop, Hummingbird Mint) | North …

    Giant Hyssop is an herbaceous perennial in the mint family of which most are native to North America and many from the southwest. They are showy, fragrant, long-blooming perennials with spikes of flowers that bloom most of the …