Trillium Species, American Wood Lily, Longbract Wakerobin, Underwood's Trillium

Trilliumunderwoodii

Genus
Trillium (TRIL-ee-um)
Synonym
Trillium lanceolatum var. rectistamineum
Trillium rectistamineum
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Herbaceous
Veined
Height
6-12 in. (15-30 cm)
Spacing
6-9 in. (15-22 cm)
Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Bloom Color
Maroon/Burgundy
Bloom Time
Late Spring/Early Summer
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Propagation Methods
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Anniston, Alabama

Havana, Florida

Miccosukee Cpo, Florida

Acworth, Georgia

Newport, Kentucky

Fallston, Maryland

Saint Louis, Missouri

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Gardener's Notes:

0
positive
1
neutral
0
negative
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M
Deer Park, TX (Zone 9a) | November 2007 | neutral

It is virtually impossible to distinguish between non-flowering plants of T decipiens and T underwoodii. The major difference is one of s...Read More

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