perennial

Licorice

Glycyrrhiza glabra 'Lemon Licorice'

The Story

Plant Bio

A perennial legume known for its sweet, aromatic root and pinnate leaves. The root is the source of commercial licorice.

The plant fixes nitrogen in the soil. Its roots have been used for centuries for culinary and medicinal purposes.

Uses & Benefits:

Ornamental UsesLemon Licorice's fragrant foliage and bright yellow flowers add visual interest and scent to gardens.
Practical UsesIts roots are used medicinally and as a natural sweetener.
Ecological BenefitsProvides nectar for pollinators and supports beneficial insects.

Essentials

At a Glance

Plant Type

Perennial

Height

36 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

7, 8, 9, 10

Water

Moderate

Humidity

Moderate

Lifespan

Perennial

Native To

Mediterranean and Asia

Toxicity

Root can cause adverse effects if consumed in large quantities.

Bloom period

Mid-summer – Late summer

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In flower about 2 months of the year

Planting

How to Grow

  1. Tuck seeds into well-draining soil in early spring for best germination.
  2. Mist cuttings regularly to maintain humidity and encourage rooting, typically taking 6 weeks.
  3. Water young plants weekly to establish strong roots, especially during dry spells.
  4. Fertilize with a balanced, low-nitrogen fertilizer in early spring and mid-summer.
  5. Prune lightly after flowering to shape the plant and remove dead or damaged stems.
  6. Mulch around the base to retain moisture and suppress weeds throughout the growing season.

Pro Tip

Plant Glycyrrhiza glabra Lemon Licorice in full sun with well-draining soil for optimal growth.

Keep It Thriving

Care Guide

Do

  • Water consistently, especially during dry periods 💧
  • Prune after flowering to promote bushier growth ✂️
  • Apply mulch annually to conserve moisture 🌱
  • Fertilize in early spring for healthy development
  • Provide support for tall or sprawling plants if needed

Don't

  • Avoid overwatering to prevent root rot ❌
  • Don’t plant in heavy clay soil without amendment
  • Refrain from pruning in late fall or winter
  • Avoid fertilizing with high nitrogen fertilizers which can promote excessive foliage at the expense of roots
  • Don’t disturb roots when transplanting

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Divide
Harvest
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Aromatic hedgeMedicinal borderDrought-tolerant feature

Companion Plants

Lavender SalviaYarrow Russian Sage Coreopsis

Multiply

Propagation Methods

Good to Know

Common Questions

Licorice questions

What zones can Licorice grow in?

Licorice is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Licorice deer resistant?

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

When does Licorice bloom?

Licorice 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 Licorice need full sun?

Licorice does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Licorice drought tolerant?

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

Keep exploring

Grow Licorice with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.