1 / 10

Trillium cuneatum

little sweet betsy

Melanthiaceae Southeastern United States

Attracts Pollinators Fragrant (light)

Native to North America

SunPart Shade – Full Shade

WaterMedium

HardinessZones 5–8

Overview

Trillium cuneatum is a spring-flowering perennial in the family Melanthiaceae, growing 8-16 inches (20-40 cm) tall from a thick rhizome. A single erect stem carries a whorl of three broad, ovate leaves 3-6 inches (8-15 cm) long, mottled in shades of light and dark green, silver, and maroon. The stalkless flower sits directly on the leaf whorl, with three erect, lance-shaped petals 1.5-3 inches (4-8 cm) long in maroon, bronze, greenish-yellow, or rarely pure yellow. The flower gives off a faint scent likened to spices or ripe fruit that draws beetles and flies. Beneath the petals sit three spreading green sepals. Plants emerge in early spring, flower, and the foliage withers by midsummer as the plant returns to dormancy. Seeds bear an oily appendage that ants carry off, dispersing the plant. T. cuneatum grows slowly, taking several years from seed to first bloom, and is slow to recover from disturbance once rooted. It forms loose colonies on rich, wooded slopes.

Native Range

Native to the southeastern United States, Trillium cuneatum is centered in the southern Appalachians and ranges from Kentucky and North Carolina south to Georgia, Alabama, and Mississippi. It grows in rich deciduous woods, limestone slopes, and ravines, often in deep leaf litter.

Suggested Uses

Used in woodland and native plant gardens, shaded borders, and naturalized plantings under deciduous trees. Its summer dormancy pairs it with ferns and later perennials that fill the gap it leaves. It suits collections of native spring wildflowers and shaded rock gardens.

How to Identify

Look for a whorl of three broad, mottled leaves topped by a single stalkless flower held upright against the leaves. The three erect petals are usually maroon to bronze, 1.5-3 inches (4-8 cm) long, and do not open widely. The mottled leaf pattern and sessile, upright flower separate it from the nodding or stalked flowers of pedicellate trilliums such as T. grandiflorum. A faint spicy-fruity scent is present at close range.

Appearance

Size & Dimensions

Height8" - 1'4"

Width/Spread8" - 1'

Reaches mature size in approximately 5 years

Colors

Flower Colors

red

Foliage Colors

Fall Foliage Colors

Bloom Information

Bloom Period

~3 weeks

Spring

Flowers open in early to mid spring, generally March to April, lasting about 2-3 weeks. The petals stay erect and partly closed throughout. Beetles and flies drawn by the faint fermenting scent carry out most pollination.

Detailed Descriptions

Flower Description

maroon to bronze, sometimes greenish-yellow

Foliage Description

mottled green and silver

Growing Conditions

Sun Requirements

SunPartial Shade SunFull Shade

Requires 2-6 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 Range6.0 - 7.5(Neutral)

357912

Soil Types

loam

Drainagewell drained

Water & Climate

Water Needs

Medium

Frost Tolerance

hardy

Time to Maturity

4-7 years from seed

Care & Maintenance

Care Guide

Grows in part shade to full shade in rich, moist, well-drained soil high in organic matter, with a near-neutral to slightly alkaline pH around 6.0-7.5. Spring moisture is needed during growth, after which the plant tolerates the drier shade of summer dormancy. It is slow to establish and slow to recover from root disturbance, so divisions and transplants are made carefully and infrequently. Propagation is mainly from fresh seed, which can take two or more years to germinate and several more to flower. A mulch of leaf litter maintains the woodland soil it depends on. Removing whole leaves before dormancy weakens the rhizome and reduces future bloom.

Pruning

No pruning is needed. Spent flowers and stems are left in place so the foliage can feed the rhizome until it yellows and dies back in summer. Picking the flower removes the three leaves with it and can set the plant back for years.