Anise Hyssop

Family: Lamiaceae Herb

Fragrant as a warm evening breeze, Anise Hyssop unfurls aromatic foliage with a sweet, licorice-anise perfume and a bright, herbal lift.

Expect slender, upright stems topped by vivid spikes of deep blue-violet blossoms, with leaves that feel finely textured and softly serrated to the eye. Grow it for fresh bouquets and fragrant garden charm—its flowers and foliage lend themselves beautifully to herbal infusions, potpourri, and flavorful seasoning blends.

Light: Full SunMaturity: 60 DaysHabit: Upright

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Mar 21st
Last Frost	Apr 25th
Transplant / Sow Outdoors	May 9th
Harvest Begins	Jul 8th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	60
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	70
Min Soil Temp (°F)	45
Min Night Temp (°F)	50
Harden Off (days)	7

Culinary Notes

Chef's Note

Anise hyssop is all about fragrance first—use it like a delicate perfume, not a heavy herb. A quick steep or a last-minute toss keeps its licorice-anise character bright instead of turning bitter or medicinal.

Best Uses

steep into hot tea or syrup for a licorice-sweet, cooling fragrance
chop fresh into fruit salads where the aromatics stay crisp (use lightly, toss at the last minute)
infuse into warm vinegar or oil for quick pickles and punchy dressings
use in herbal salt blends—small amounts only—then sprinkle over grilled pork or roasted squash

Flavor Profile

sweet anise-licorice aroma bright herbal, slightly minty lift finely textured leaf bite with a clean aromatic finish

Kitchen Pairings

honey lemon black pepper white wine vinegar pork peaches

Frequently Asked Questions

How do I prevent and treat powdery mildew on anise hyssop (Agastache) in humid summers?

Powdery mildew shows up as a gray-white coating on anise hyssop leaves, often after periods of humid weather. Improve airflow by spacing plants about 18–24 in. apart and remove badly infected leaves; water at the base so foliage stays dry. If it keeps spreading, spray a labeled sulfur fungicide or potassium bicarbonate when new growth appears and repeat per label timing.

How often should I water anise hyssop during the main growing phase, and what soil moisture should I aim for?

Once established, anise hyssop should be watered deeply but infrequently to keep the soil evenly moist yet not soggy—aim for the top 1–2 in. to dry between waterings. During active growth and early bloom (roughly weeks 3–8), water about 1–2 times per week depending on heat, and always avoid standing water around the crown. In containers, check daily in hot weather because they dry out faster.

When is anise hyssop ready to harvest for best flavor and bloom use?

Harvest when the plant reaches about 60 days from sowing and the flower spikes are fully formed with the first blossoms just opening at the bottom of the spike. For the strongest anise-like flavor, cut in the morning after dew dries, and harvest frequently by snipping the top portion of the spike as blooms appear. If you’re harvesting leaves, pick healthy upper leaves before flowering becomes heavy to avoid a slightly harsher taste.