Yellow trillium

Trillium luteum

Photo/Illustration: 
Jennifer Benner
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Yellow trillium (Trillium luteum)
TRILL-ee-um LOO-tee-um
Genus:  Trillium
This mid- to late-spring bloomer bears yellow blossoms atop a trio of leaves often mottled with a paler shade of silvery-green. It is faintly fragrant of lemon oil, and grows to about 14 inches tall.
Noteworthy Characteristics:  Most trilliums are native to woodlands and scrub of North America. Groups of them make an elegant understory planting in a woodland or shady naturalized area. Trilliums go dormant in summer, so plant them with other shade-loving perennials to share their place until they reappear the following spring. 
Care:  Provide rich, moist, but well-drained soil with a neutral to acidic pH. Plant in full to part shade. Mulch annually with rich organic matter.
Propagation:  Trilliums propagate readily by division when plants are dormant in late summer or early fall.
Problems:  Smut, rust, fungal spots, slugs, snails

Overview

Height
1 ft. to 3 ft.
Spread
6 in. to 12 in.
Growth Habit
Clumps
Growth Pace
Moderate Grower
Light
Part Shade to Full Shade
Moisture
Medium Moisture
Maintenance
Low
Characteristics
Fragrant Flowers,
Native,
Self Seeds,
Showy Flowers,
Showy Foliage
Bloom Time
Late Spring
Flower Color
Primrose Yellow
Foliage Color
Variegated Foliage
Uses
Ground Covers,
Naturalizing
Style
Shade,
Woodland Garden
Seasonal Interest
Spring Interest
Type
Perennials

Related Plants to Trillium luteum

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Red trillium
Trillium erectum
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Propeller toad shade
Trillium stamineum
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White trillium
Trillium erectum var. album
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Prairie trillium
Trillium recurvatum