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Astello Indigo Hyssop

New! Agastache hybrida. It has a multitude of majestic, deep indigo-blue flowering spikes and dark green foliage. Height: 2’.

One packet of about 50 seeds

** This item will be available to ship in late January 2026 **

In stock
Item
#7092
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$5.45
  • Buy 10 for $4.90 each and save 10%
  • Buy 50 for $4.10 each and save 25%
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  • Information
    • Agastache rupestris. Direct-sow after all threat of frost has passed, or raise as transplants 8 to 10 weeks earlier. It requires extremely well-draining soil. Once established, it is drought-tolerant. Deer resistant. Perennial (HZ: 5-10). Summer flowering. Height: 1½' to 2'.

    Average seed life: 2 years.
  • Gardening Tips
    • Hyssop Sowing Instructions
      Planting Depth      :1/8”
      Seed Spacing:2”-3”
      Plant Spacing:18”
      Days to Germination: 5-20 days
      Germination Temperature:70°-75°F

      Hyssop should be direct-sown after the threat of frost has passed. Sow seeds on top of the soil, leaving the seeds uncovered but pressed firmly onto the soil surface, as light aids germination. It may also be raised as transplants 8 to 10 weeks before the last spring frost date, with even moisture, strong light and air circulation. Harden off the seedlings by gradually acclimating them to the outdoors for a week to 10 days. Prepare a bed in full sunlight with rich, well-draining soil. Thin or transplant to 18" apart. Transplants should be watered regularly to help establish a mature root system for first-year blooms. Once established, it is drought tolerant. Its compact plants have dozens of sturdy spikes studded with tubular flowers. This valuable cut flower is adored by bees, hummingbirds and butterflies. Summer flowering. Height: 1 1⁄2' to 2'.

      Our Pollinators are in Peril
Agastache rupestris. Direct-sow after all threat of frost has passed, or raise as transplants 8 to 10 weeks earlier. It requires extremely well-draining soil. Once established, it is drought-tolerant. Deer resistant. Perennial (HZ: 5-10). Summer flowering. Height: 1½' to 2'.

Average seed life: 2 years.
  • Hyssop Sowing Instructions
    Planting Depth    :1/8”
    Seed Spacing:2”-3”
    Plant Spacing:18”
    Days to Germination: 5-20 days
    Germination Temperature:70°-75°F

    Hyssop should be direct-sown after the threat of frost has passed. Sow seeds on top of the soil, leaving the seeds uncovered but pressed firmly onto the soil surface, as light aids germination. It may also be raised as transplants 8 to 10 weeks before the last spring frost date, with even moisture, strong light and air circulation. Harden off the seedlings by gradually acclimating them to the outdoors for a week to 10 days. Prepare a bed in full sunlight with rich, well-draining soil. Thin or transplant to 18" apart. Transplants should be watered regularly to help establish a mature root system for first-year blooms. Once established, it is drought tolerant. Its compact plants have dozens of sturdy spikes studded with tubular flowers. This valuable cut flower is adored by bees, hummingbirds and butterflies. Summer flowering. Height: 1 1⁄2' to 2'.

    Our Pollinators are in Peril
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