perennialN. America Native

Wild Comfrey

Andersonglossum virginianum

The Story

Plant Bio

Andersonglossum virginianum is a deciduous herbaceous perennial native to eastern North American woodlands, forming a basal rosette of large, rough-haired leaves. In spring, unbranched flowering stems rise above the foliage to bear terminal clusters of pale sky-blue to purplish flowers that age to a greenish-white.

This species is distinguished by its densely hairy, elliptic leaves and its distinctive spiny, barbed nutlets that cling to passing animals for seed dispersal. The small, flat-faced flowers are specifically structured to accommodate small native bees and flies rather than long-tongued pollinators.

Uses & Benefits:

Ornamental UsesProvides soft, sky-blue flowers and bold, textured basal foliage in deeply shaded garden areas.
Practical UsesThrives in dryish shade and acidic, rocky soils where other perennials struggle to establish.
Ecological BenefitsAttracts native bees and beneficial insect pollinators to woodland understories.

Essentials

At a Glance

Plant Type

Perennial

Height

36"

Width

12"

Light

Partial Sun, Shade

Zones

5, 6, 7, 8, 9

Water

Medium to medium-dry

Humidity

High

Lifespan

Perennial

Native To

North America

Toxicity

Toxic if ingested; skin irritant

Bloom period

Mid spring – Early summer

J
F
M
A
M
J
J
A
S
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In flower about 3 months of the year

Planting

How to Grow

  1. Select a planting site in partial to full shade, mimicking a natural forest canopy.
  2. Incorporate organic leaf mold or compost into the soil to improve moisture retention and structure.
  3. Position the crown level with the soil surface to prevent rot.
  4. Water thoroughly after planting and maintain consistent moisture until the root system is established.

Pro Tip

Plant in dappled shade with leaf-litter-rich soil, ensuring absolute winter drainage; waterlogged soils during dormancy rot the crown.

Keep It Thriving

Care Guide

Do

  • Clear away dead foliage in late winter before new basal growth begins.
  • Apply a light top-dressing of leaf mold or compost around the base in fall.
  • Ensure the soil drains rapidly to protect the dormant crown from winter wet.

Don't

  • Do not plant in hot, dry, full-sun borders where the foliage will scorch and decline.
  • Do not over-maintain or frequently transplant established crowns.
  • Do not apply heavy synthetic fertilizers, as the plant thrives in natural woodland nutrient levels.

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Divide
Mulch
Pest Check
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Woodland GardenNative PlantingShade BorderNaturalized Area

Multiply

Propagation Methods

Good to Know

Common Questions

Wild Comfrey questions

What zones can Wild Comfrey grow in?

Wild Comfrey is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Wild Comfrey deer resistant?

Not reliably. Deer may browse Wild Comfrey, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Wild Comfrey bloom?

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

Does Wild Comfrey need full sun?

Wild Comfrey does best in part shade.

Keep exploring

Grow Wild Comfrey 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.