perennial

Japanese Burnet

Sanguisorba obtusa

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Perennial

Height

36 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Japan

Toxicity

Non-toxic to humans and pets

The Story

Plant Bio

Sanguisorba obtusa is a clump-forming perennial with attractive, blue-green, pinnate leaves. In summer, it produces arching stems topped with fluffy, bottlebrush-like spikes of rose-pink flowers. Known for its nodding, feathery flower spikes that create a soft, airy texture in the garden. The foliage remains attractive throughout the growing season.

Bloom Period:

EarlyLate

Uses & Benefits:

Adds fine texture and deep color to shaded perennial borders, attracting pollinators and enhancing garden diversity.

Drought-tolerant once established, reducing water needs.

Supports beneficial insects and provides habitat in shaded garden areas.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

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Planting

How to Grow

Select a well-draining, fertile soil with neutral to slightly acidic pH.
Tuck seeds or divisions into the soil at the appropriate time in early spring or fall.
Water consistently to keep soil evenly moist but not waterlogged.
Mulch around the plant to retain moisture and suppress weeds.
Prune lightly after flowering to maintain shape and encourage new growth.
Divide mature plants every 3–4 years in early spring or fall to promote vigor.

Pro Tip

Ensure good air circulation to prevent fungal diseases and promote healthy growth.

Keep It Thriving

Care Guide

Do

Water regularly, especially during dry spells 🌱
Apply a balanced fertilizer in early spring
Deadhead spent flowers to encourage more blooms
Mulch to conserve moisture and suppress weeds

Don't

Avoid overwatering to prevent root rot ❌
Don’t forget to prune after flowering
Avoid planting in poorly drained soils
Refrain from excessive fertilizing which can cause legginess

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Divide
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Soft-textured perennial borderInformal shaded garden accentWildflower meadow edge

Companion Plants

Astilbe Hosta Fern Japanese Anemone Ligularia

Multiply

Propagation Methods

Good to Know

Common Questions

Japanese Burnet questions

What zones can Japanese Burnet grow in?

Japanese Burnet 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 Japanese Burnet deer resistant?

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

When does Japanese Burnet bloom?

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

Does Japanese Burnet need full sun?

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