2 named cultivars

perennial

Mourning Widow

The Story

Plant Bio

Geranium phaeum, commonly known as mourning widow or black widow geranium, is a perennial plant known for its attractive dark purple flowers and lush foliage.

Distinctive dark purple to near black flowers, and is especially noted for its ability to thrive in shaded areas.

Uses & Benefits:

Geranium phaeum offers lush foliage and charming purple flowers, providing texture and color to shaded gardens.

Its low-maintenance nature makes it ideal for groundcover in difficult shady spots.

Attracts pollinators like bees and butterflies, supporting local biodiversity.

Essentials

At a Glance

Plant Type

Perennial

Height

18 inches

Width

24 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7

Water

Moderate

Humidity

Average to high

Lifespan

Perennial

Native To

Europe

Toxicity

Non-toxic to humans and pets

Planting

How to Grow

Select a well-draining soil with loam or sandy texture.
Plant in a location with partial sun to shade for optimal growth.
Tuck seeds shallowly into soil and water gently to settle.
Mist cuttings regularly to maintain humidity and promote rooting.
Mulch around plants to retain moisture and suppress weeds.
Transplant young plants in early spring after the last frost.

Pro Tip

Ensure consistent moisture without waterlogging for healthy geranium phaeum growth.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist but not soggy 🌱
Prune dead or damaged stems to encourage bushiness
Fertilize with a balanced liquid feed during active growth
Mulch to conserve soil moisture and suppress weeds

Don't

Avoid overwatering to prevent root rot ❌
Do not expose to full, harsh sunlight which can scorch leaves
Refrain from heavy fertilizing late in the season
Avoid disturbing roots during active growth periods

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Shaded border with textured foliageWoodland garden accent

Companion Plants

HostaFerns AstilbeJapanese Forest Grass

Multiply

Propagation Methods

Good to Know

Common Questions

Mourning Widow questions

What zones can Mourning Widow grow in?

Mourning Widow is hardy in USDA Zones 4–7. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Mourning Widow deer resistant?

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

When does Mourning Widow bloom?

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

Does Mourning Widow need full sun?

Mourning Widow does best in part shade.