PlantsShade & Groundcovers

Large White Trillium

Large White Trillium (Trillium grandiflorum)
Cbaile19 · CC0
Large White Trillium in flower
In flower · (c) Daniel McClosky, some rights reserved (CC BY) · CC BY

Trillium grandiflorum

Chicago-region native. Suited to zone 6a.

Classic white spring woodland flower

AdvancedShade & GroundcoversAlso Specialty
Light
Part shade–shade
Moisture
Medium
Mature size
2–4 ft
Spacing
18–30 in
Bloom or harvest
Flowers Apr–May
How it spreads
Very slow clump
What to buy
Plug or division for reliable residential establishment; seed for larger restoration areas.
When to plant
Apr–May; late Aug–Sep, finishing about six weeks before the first frost.

In the design

Retain leaf litter; avoid deep mulch over crowns.

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Reference details
Conservatism value
9
Wetland indicator
UPL