perennial

Thin-Leafed Burnet

The Story

Plant Bio

Sanguisorba tenuifolia, commonly known as thin-leafed burnet, is characterized by its tall, slender form and dense spike-like flowers.

This species is particularly noted for its ability to thrive in damp, rich soils and attracts a variety of beneficial insects.

Uses & Benefits:

Sanguisorba tenuifolia features delicate, feathery foliage and understated flowers, adding soft texture to perennial borders.

Its drought tolerance makes it suitable for low-maintenance gardens.

Provides habitat and nectar for pollinators like bees and butterflies.

Essentials

At a Glance

Plant Type

Perennial

Height

48 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

High

Humidity

Average

Lifespan

Perennial

Native To

Asia

Toxicity

Non-toxic

Bloom period

Late summer – Early fall

In flower about 2 months of the year

Planting

How to Grow

Tuck seeds into well-drained soil in early spring for best germination.
Water regularly to keep soil moist but not soggy during establishment.
Thin seedlings to prevent overcrowding once they develop their first true leaves.
Mist cuttings with water and place in bright, indirect light for root development.
Transplant mature plants in early spring or fall for optimal growth.
Apply a balanced fertilizer in early spring to promote healthy foliage.

Pro Tip

Use organic compost to enrich soil and encourage vibrant growth.

Keep It Thriving

Care Guide

Do

Water consistently to keep the soil evenly moist 🌱
Mulch around the base to retain soil moisture and suppress weeds
Prune after flowering to maintain shape and encourage new growth
Divide clumps every 3-4 years to rejuvenate plants

Don't

Avoid overwatering to prevent root rot ❌
Don’t disturb plants during peak flowering period
Refrain from using harsh chemical fertilizers that can harm beneficial insects
Do not neglect to remove spent flowers to promote continuous bloom

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Silvery foliage borderAiry perennial backdropSoft-textured garden bed

Companion Plants

Echinacea RudbeckiaLavender Salvia Coreopsis

Multiply

Propagation Methods

Good to Know

Common Questions

Thin-Leafed Burnet questions

What zones can Thin-Leafed Burnet grow in?

Thin-Leafed 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 Thin-Leafed Burnet deer resistant?

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

When does Thin-Leafed Burnet bloom?

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

Does Thin-Leafed Burnet need full sun?

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