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Plant Information Sheet
Anise Hyssop
Agastache foeniculum
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Care
Light
Full sun; tolerates light shade. Increase exposure gradually so leaves or stems can adjust.
Water
Moderate while establishing; drought-tolerant later. Check the root zone before watering and always let excess drain.
Standard soil mix
Two parts screened loam or potting mix, one part compost, and one part coarse sand or perlite. Use a container with an open drainage hole.
Flowering

Blue-purple flower spikes bloom in summer and attract bees, butterflies, and other pollinators.
Propagation
Use seed, division, offsets, spores, or stem cuttings only as appropriate for the verified species. Keep propagation material labeled and clean; do not distribute unidentified or regulated invasive material.
Seed germination and light
Seeds need light to germinate. Press them onto the moist surface and leave them exposed, or use only a very light dusting of fine medium. Keep moist without waterlogging. A cold, moist pretreatment may improve germination; follow instructions for the seed lot.
Germination source: Piedmont Master Gardeners, Virginia Cooperative Extension, Anise hyssop. Reviewed 2026-09-21.
Native environment


Prairies, open woodland edges, and disturbed ground in north-central North America. Care succeeds when it reproduces the function of this setting—light, drainage, root-zone air, and seasonal water—rather than following a rigid calendar.
