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.
Uses & Benefits:
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
Bloom period
Late spring
In flower about 1 month of the year
Planting
How to Grow
- Tuck seeds into moist soil in early spring.
- Water regularly to keep soil evenly moist.
- Place in partial shade for best growth.
- Fertilize lightly in early spring with balanced fertilizer.
- Divide clumps every 2–3 years in spring.
- 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
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Harvest | ||||||||||||
| Plant |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
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 — 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 — Sow's bloom calendar maps it to your garden.
Does Sweet Woodruff need full sun?
Sweet Woodruff does best in part shade.
Keep exploring
Explore the genus
Hardy in your zone?
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.