1 / 12

Wurmbea dioica

early nancy

SunFull Sun – Part Shade

WaterLow

Overview

Wurmbea dioica is a small perennial herb growing from an underground corm, reaching 5-25 cm (2-10 in) tall. Each plant produces three narrow, channelled leaves that sheath the lower stem, the lowest much longer than the two above. The stem bears a short spike of 2-12 star-shaped flowers, each 1-2 cm (0.4-0.8 in) across, with six white to pinkish segments marked by a dark purple to maroon band across the middle that holds the nectar glands. As the species name suggests, it is usually dioecious, with male and female flowers on separate plants, though some populations carry bisexual flowers. Flowering occurs in late winter and early spring, opening early in the season, after which the plant dies back to its corm for a long summer dormancy. It grows in seasonally moist grassland, woodland, and granite outcrops across much of Australia. Like other members of the family Colchicaceae, the corm and foliage contain colchicine-type alkaloids that are poisonous to people and livestock if eaten. Its small size and brief spring display suit it to native grassland restoration rather than prominent garden positions.

Native Range

Native across much of Australia, including all mainland states and Tasmania, in seasonally damp grassland, open woodland, and around granite outcrops.

Suggested Uses

Grown in native grassland and wildflower restoration and in pots within specialist collections of Australian geophytes. Its early flowering and summer dormancy suit seasonal displays rather than year-round bedding.

How to Identify

A small slender herb with three channelled leaves and a short spike of white star-shaped flowers, each crossed by a dark purple or maroon band near the middle. Male and female flowers usually occur on separate plants. The whole plant is small, to about 25 cm, and dies back by early summer.

Appearance

Size & Dimensions

Height2" - 10"

Width/Spread2" - 4"

Colors

Flower Colors

Foliage Colors

Bloom Information

Bloom Period

~4 weeks

Winter Spring

Flowers from late winter to mid-spring, roughly August to October in its native range, opening early among seasonal wildflowers. Each spike carries a succession of small white flowers over a few weeks before the plant withers.

Detailed Descriptions

Flower Description

White to pink with a dark purple-maroon band

Foliage Description

Green

Growing Conditions

Sun Requirements

SunFull Sun SunPartial Shade

Requires 6-12 hours of direct sunlight daily

• Full Sun: 6+ hours of direct sunlight

• Partial Shade: 3-6 hours of direct sunlight

• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range5.5 - 7.5(Neutral)

357912

Soil Types

sand loam rocky

Drainagewell drained

Water & Climate

Water Needs

Low

Frost Tolerance

hardy

Care & Maintenance

Care Guide

Suited to a free-draining gritty or sandy soil that stays moist through winter and spring then dries for summer dormancy. It needs full sun to light shade during growth and a warm, dry rest once foliage yellows. Watering follows the natural cycle, with no summer irrigation while the corm is dormant. It tolerates frost during winter growth but rots in soils that stay wet in summer. The corm and leaves are poisonous if eaten and have caused stock losses in grazed pasture.

Pruning

No pruning is required. The leaves and flowering stem die back naturally to the corm by early summer. Dried stems can be removed once spent if seed is not being collected.

⚠️ Toxicity Warning

Toxic to pets and humans