Yellow Trillium

(Trillium luteum)

Yellow Trillium (Trillium luteum)

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Estimated Native Range
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Summary

Trillium luteum, commonly known as Yellow Trillium, is a deciduous perennial herb native to rich, mesic deciduous forests in the Southeastern United States. It typically grows to 40 cm (16 in) tall by 30 cm (12 in) wide. The plant features mottled green leaves and upright, lemon yellow flowers that are notably fragrant, blooming in spring. After the flowering period and seed set, it enters a dormant phase during the summer, reemerging in late winter. The showy blooms and the plant’s ability to form extensive colonies over time make it a desirable addition to shade gardens.

Yellow Trillium is valued for its distinctive, scented yellow flowers and its ability to naturalize in suitable conditions, creating a carpet-like effect in woodland gardens. It is often used in shaded border plantings, as a ground cover under deciduous trees, or in naturalized areas. While it can be a challenge to cultivate, requiring a sheltered location with rich, moist, well-draining leaf mold, it is a rewarding plant for the experienced gardener. It thrives in part shade to full shade and prefers medium water. It has earned the Royal Horticultural Society’s Award of Garden Merit, indicating its exceptional qualities in garden settings. Care should be taken to avoid disturbing established colonies, as they are best left undisturbed to thrive.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 1-1.5 feet
  • Width: 1-1.5 feet
  • Growth Rate: Slow
  • Flower Color: Yellow
  • Flowering Season: Spring
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Part Shade, Full Shade
  • Water: Medium
  • Drainage: Medium

Common Uses

Bee Garden, Butterfly Garden, Deer Resistant, Fragrant

Natural Habitat

Rich, mesic deciduous forests

Other Names

Common Names: Wax Trillium, Yellow Toadshade, Yellow Wakerobin, Trille Jaune, Gult Treblad

Scientific Names: , Trillium luteum, Trillium cuneatum var. luteum, Trillium viride var. luteum, Trillium hugeri f. flavum, Trillium sessile var. luteum, Trillium sessile f. luteum, Trillium underwoodii var. luteum,

GBIF Accepted Name: Trillium luteum (Muhl.) Harb.