groundcover

Yellow Archangel

Lamium galeobdolon

The Story

Plant Bio

Lamium galeobdolon, yellow archangel, is a fast creeping evergreen perennial from Europe and western Asia, making a mat of silver-marked heart-shaped leaves on square white-hairy stems, with flowering shoots rising one to two feet. Whorls of hooded yellow flowers open in late spring, and it roots freely wherever the running stems touch the ground.

It is invasive in North America and a listed noxious weed in Washington and Oregon, where it escapes gardens and carpets forest floors — every rooted fragment starts a new colony, including the ones in dumped garden waste. Choose the far better behaved spotted deadnettle, Lamium maculatum, or native wild ginger or foamflower for the same job in dry shade.

Uses & Benefits:

Ornamental UsesBright silver-marked evergreen foliage and hooded yellow flowers in dry shade where little grows.
Practical UsesCovers difficult dry shade fast — which is precisely why it escapes and becomes a problem.
Ecological BenefitsNegative in North America: it forms dense mats on forest floors and displaces native ground flora.

Essentials

At a Glance

Plant Type

Groundcover

Height

18 inches

Width

14 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Low

Humidity

Moderate

Lifespan

Perennial

Native To

Europe to Iran

Toxicity

Non-toxic

Planting

How to Grow

  1. Check your state noxious weed list before planting.
  2. Prefer Lamium maculatum or a native groundcover.
  3. Confine any planting to a container or sealed bed.
  4. Cut the running stems back before they root out.
  5. Never dump clippings in woodland or green waste.
  6. Watch for it spreading into neighbouring ground.

Pro Tip

Every rooted fragment restarts the colony, so removal means lifting the runners whole rather than pulling and leaving pieces.

Keep It Thriving

Care Guide

Do

  • Choose Lamium maculatum instead 🌱
  • Confine it to a sealed container 🪴
  • Bag clippings for disposal 🗑️
  • Check local noxious weed listings ⚠️

Don't

  • Plant it in open ground ❌
  • Compost or dump the runners ❌
  • Let it reach a woodland edge ❌

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Check
Cut Back

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Not recommended for open groundContained containers and hanging baskets onlyDifficult dry shade where it can be confined

Companion Plants

Spotted Deadnettle Wild Ginger Foamflower Christmas Fern Barrenwort

Multiply

Propagation Methods

Good to Know

Common Questions

Yellow Archangel questions

What zones can Yellow Archangel grow in?

Yellow Archangel is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Yellow Archangel deer resistant?

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

When does Yellow Archangel bloom?

Yellow Archangel 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 Yellow Archangel need full sun?

Yellow Archangel does best in part shade.

Keep exploring

Grow Yellow Archangel 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.