Trillium grandiflorum

Great White Trillium

Family: Melanthiaceae (Bunchflower Family)

       

·        Hardiness Zones:  4-8

·        Height: 12-18 inches

·        Spread: 9-12 inches

·        Bloom Time: April to June

·        Bloom: solitary white flower (to 3 1/2 inches across) consisting of 3 ovate white petals, slightly turned back at the tips. surrounded by 3 smaller green sepals rising above a whorl of three leaves

·        Light: part to full shade

·        Soil: deep, rich, humusy, moist but well-drained soils

·        Moisture: medium; requires consistent moisture

·        Use: shaded woodland and wildflower gardens, moist shady borders, will naturalize

·        Care: low maintenance; benefits from leaf mulch in fall

·        Concerns: no serious insect or disease problems; watch for slugs and snails; can be difficult to propagate from seed; does not transplant well

·        Native to: Eastern North America

·        Notes: foliage consists of a whorl of three veined ovate green leaves (4 to 6 inches long) atop a naked stem; bloom emerges from the center of the leaf whorl; deer resistant; tolerates black walnut

·        Supplier: The Flower Factory; Landscape Designs, Inc.

·        Teaching Garden Location & Code: Naturalistic Garden H155, Shade Garden F029

 

       Content produced through:

       Dane County UWEX Master Gardener Volunteer Program 

 

       Questions?  

       Dane County UWEX Horticulture Program

 

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