Trillium (Trillium grandiflorum)
Bloom time: April – May
General: Woodland plant, 10-40 cm tall.
Leaves & Twigs: Woodland plant, 10-40 cm tall.
Flowers & Fruits
- Three distinctive white petals form a single white flower up to 10 cm across.
- Flowers fade over time to a dull pinkish purple shade, and become slightly transparent.
- The greenish, round fruit forms a six-sided, berry-like capsule.
Habitat: Trilliums are found in rich, moist, well-drained woods and wet areas at low to mid-elevations. They prefer semi-shade, and are often found under sugar maple and beech trees in open forests.
PlantWatch Pointers: If possible, select a patch of trilliums next to a trail so that you can make observations without stepping on growing plants. If these plants are very abundant, mark a section 1 metre square.
- First bloom: when the first flowers are open in the observed plants.
- Mid bloom: when 50% of the flowers are open in the observed plants, but have not yet started turning pink.
This species is monitored in:
The name trillium means “in threes”, which refers to the fact that leaves, petals and sepals appear in triplicate.