Plant Overview

The Great White Trillium is a stunning spring ephemeral wildflower native to eastern North America. This elegant perennial showcases three large, pure white petals that hover gracefully above a whorl of three broad, dark green leaves. As Ontarios official flower, it creates a magnificent display in woodland gardens and natural settings.

Plant Information

• Latin Name: Trillium grandiflorum
• Common Name: Great White Trillium, White Wake-Robin
• Watering Requirements: Medium
• Sun Exposure: Part shade to full shade
• Soil Conditions: Rich, well-draining, humus-rich woodland soil
• Mature Plant Height: 30-45 cm (12-18 inches)
• Mature Plant Width: 30-45 cm (12-18 inches)

Plant Care

Great White Trillium requires minimal maintenance once established. Keep soil consistently moist but not waterlogged during the growing season. Remove spent flowers to prevent seed formation and encourage stronger plants. Allow foliage to die back naturally, as this feeds the rhizome for next years growth. Apply a layer of leaf mulch in fall to protect roots during winter.

Planting Instructions

Plant rhizomes in early spring or fall, 10-15 cm deep and 30 cm apart. Choose a location with dappled shade under deciduous trees. Prepare the planting area by incorporating organic matter into the soil. Ensure the soil remains undisturbed, as trilliums can take several years to establish strong colonies. Water thoroughly after planting and maintain consistent moisture until established.

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