| General Description | Trillium luteum is a rare, endangered, rhizomatous, herbaceous perennial with interesting, green mottled leaves and atypical, green-yellow flowers. |
| Landscape | Trilliums make a classic addition to a shady woodland garden. Good ground cover: will spread slowly via rhizomes. |
| Propagation | By seed: as soon as it is ripe plant in pots and keep in a shady cold frame. It will take 5 - 7 years to flower. Also by division of rhizomes after flowering. |
| Cultivation | Grow in a sheltered location, part to full shade, in moderately moist, well-drained, humus, acidic to neutral soil. Water regularly; leaf dieback will occur by mid-summer especially if soil dries out. Intolerant to transplanting, should not be dug in the wild. Mulch with leaf mould in autumn. |
| Pests | Possible pests include: slugs and snails. No serious diseases to note. |
| Notable Specimens | The A.M. Cuddy Gardens, Strathroy, Ontario, Canada. |
| Leaf Description | In groups of three, mottled different shades of green, broad, lanceolate to rounded, up to 10 cm long, evenly spaced atop an erect, naked, unbranched stem. |
| Flower Description | Showy, terminal, solitary, up to 5 cm high, 3 narrow sepals are green, surrounding 3 erect, yellow-green petals that curl inwards at the tip. May have a faint lemon scent. |
