Trillium luteum
Yellow Wakerobin, Yellow Wood Trillium, Wood Lily
"
A critically endangered Ontario wildflower that is quite unusual.
"
| Family |
| Melanthiaceae |
| Genus |
| Trillium |
| Species |
| luteum |
| Category |
| Bulbs, Perennials, Weeds |
| Synonyms |
| Trillium sessile var. luteum, Trillium cuneatum, Trillium viride |
| USDA Hardiness Zone |
| 4 - 8 |
| Canadian Hardiness Zone |
| 2a - 8a |
| RHS Hardiness Zone |
| H4 - H7 |
| Temperature (°C) |
| -35 - (-7) |
| Temperature (°F) |
| -30 - 20 |
| Height |
| 30 - 45 cm |
| Spread |
| 30 - 45 cm |
| 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. |
| 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. |
| Growth |
| Fast |
| Pests |
| Possible pests include: slugs and snails. No serious diseases to note. |
| 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. |
| Notable Specimens |
| The A.M. Cuddy Gardens, Strathroy, Ontario, Canada. |
| 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. |