perennial

Balm-leaved Archangel

Lamium orvala 'Silva'

The Story

Plant Bio

Lamium orvala is an upright, clump-forming perennial with heart-shaped, toothed, green leaves. In late spring, it produces whorls of large, hooded, pinkish-purple flowers.

The cultivar 'Silva' is distinguished by its attractive foliage, which features a prominent silvery blotch in the center of each leaf.

Uses & Benefits:

Provides lush, aromatic foliage that brightens shady spots and groundcovers effectively.

Deer resistant and low-maintenance, ideal for busy gardeners.

Supports insect life, attracts beneficial pollinators.

Essentials

At a Glance

Plant Type

Perennial

Height

18 inches

Width

18 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Europe

Toxicity

Non-toxic

Bloom period

Late spring – Late fall

In flower about 7 months of the year

Planting

How to Grow

Tuck seeds into well-draining soil in early spring
Water regularly to keep soil moist but not waterlogged
Place in partial shade for best growth
Mulch around plants to retain moisture
Divide every 2-3 years in early spring
Pinch back in late summer to encourage bushier growth

Pro Tip

Ensure soil remains moist and well-drained for healthy growth

Keep It Thriving

Care Guide

Do

Water consistently during dry periods 🌱
Prune back after flowering to promote dense foliage
Mulch to conserve moisture and suppress weeds

Don't

Avoid overwatering to prevent root rot ❌
Do not allow soil to dry out completely
Refrain from heavy fertilization that can promote legginess

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Silver-foliaged groundcoverFragrant border plant

Companion Plants

Hostas Ferns Astilbes Heucheras

Multiply

Propagation Methods

Good to Know

Common Questions

Balm-leaved Archangel questions

What zones can Balm-leaved Archangel grow in?

Balm-leaved Archangel 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 Balm-leaved Archangel deer resistant?

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

When does Balm-leaved Archangel bloom?

Balm-leaved Archangel typically blooms in late spring through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Balm-leaved Archangel need full sun?

Balm-leaved Archangel does best in part shade.