perennial

Anise Hyssop

Agastache anisata

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Essentials

At a Glance

Plant Type

Perennial

Height

36 inches

Width

24 inches

Light

Full Sun

Zones

4, 5, 6, 7, 8, 9

Water

Low to moderate

Humidity

Average

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic

The Story

Plant Bio

Agastache foeniculum is an upright, clump-forming perennial with aromatic, anise-scented leaves and dense spikes of lavender-blue flowers that are highly attractive to pollinators. The leaves can be used to make a fragrant tea. The plant is very low-maintenance, drought tolerant, and provides long-lasting color from summer to fall.

Bloom Period:

EarlyLate

Uses & Benefits:

Provides fragrant purple spikes that attract pollinators and add color to summer borders.

Drought-resistant and deer-proof, ideal for low-maintenance gardens.

Supports beneficial insects and pollinators, enhancing garden biodiversity.

Marketplace

Where to Buy

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Planting

How to Grow

Tuck seeds into well-drained soil in early spring
Water regularly until established, about 6 weeks
Thin seedlings to prevent overcrowding
Fertilize lightly in spring with balanced fertilizer
Prune after flowering to maintain shape
Mulch around base to retain moisture

Pro Tip

Plant in full sun with well-drained soil for best blooms

Keep It Thriving

Care Guide

Do

Water during dry spells 🌱
Prune after flowering to encourage bushiness
Divide every 3-4 years to rejuvenate

Don't

Overwater to prevent root rot ❌
Avoid heavy fertilization that can reduce flowering
Don’t prune in late fall or winter

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Harvest
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Aromatic herb borderWildflower meadow accentDrought-tolerant garden bed

Companion Plants

Russian Sage Lavender Coreopsis Echinacea Salvia

Multiply

Propagation Methods

Good to Know

Common Questions

Anise Hyssop questions

What zones can Anise Hyssop grow in?

Anise Hyssop is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Anise Hyssop deer resistant?

Yes — Anise Hyssop is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Anise Hyssop bloom?

Anise Hyssop typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Anise Hyssop need full sun?

Anise Hyssop does best in full sun (6+ hours).

Is Anise Hyssop drought tolerant?

Yes — once established (usually after the first full season), Anise Hyssop handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.