Asperula odorata
perennial

Sweet Woodruff

Asperula odorata

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Perennial

Height

6 inches

Width

12 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Europe

Toxicity

Can be toxic in large quantities

The Story

Plant Bio

Asperula odorata, commonly known as Woodruff, is a low-growing perennial with dense, aromatic foliage and clusters of small, star-shaped white flowers that bloom in late spring to summer. This species is prized for its sweet scent, which is often used to flavor traditional beverages and desserts, and its ability to thrive in shaded, woodland garden settings.

Bloom Period:

J
F
M
A
M
J
J
A
S
O
N
D
EarlyLate

Uses & Benefits:

Ornamental UsesA fragrant groundcover that adds soft blue hues and attracts beneficial insects, perfect for shaded garden areas.
Practical UsesDrought tolerant and low-maintenance, ideal for shaded spots with poor soil.
Ecological BenefitsSupports insect life and provides habitat for small wildlife.

Marketplace

Where to Buy

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Planting

How to Grow

  1. Tuck seeds into moist soil in early spring.
  2. Water regularly to keep soil evenly moist.
  3. Place in partial shade for best growth.
  4. Fertilize lightly in early spring with balanced fertilizer.
  5. Divide clumps every 2–3 years in spring.
  6. Mulch around plants to retain moisture.

Pro Tip

Ensure well-draining soil and partial shade for optimal growth.

Keep It Thriving

Care Guide

Do

  • Water during dry spells 🌱
  • Mulch to conserve moisture 🌱
  • Divide every few years 🌱
  • Fertilize in early spring 🌱

Don't

  • Avoid overwatering ❌
  • Don’t expose to full sun ❌
  • Prevent soil from becoming waterlogged ❌

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Divide
Harvest
Plant

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Fragrant groundcover for shaded bordersWildlife-friendly garden patch

Companion Plants

Hosta Ferns Astilbe Brunnera Heuchera

Multiply

Propagation Methods

Good to Know

Common Questions

Sweet Woodruff questions

What zones can Sweet Woodruff grow in?

Sweet Woodruff is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Sweet Woodruff deer resistant?

Yes β€” Sweet Woodruff is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Sweet Woodruff bloom?

Sweet Woodruff typically blooms in late spring through late spring. Exact timing shifts a week or two with your zone β€” Sow's bloom calendar maps it to your garden.

Does Sweet Woodruff need full sun?

Sweet Woodruff does best in part shade.

Keep exploring

Grow Sweet Woodruff 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.

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