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PlantFiles: Underwood's Trillium, Longbract Wakerobin
Trillium underwoodii

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Family: Trilliaceae
Genus: Trillium (TRIL-ee-um) (Info)
Species: underwoodii

One vendor has this plant for sale.

13 members have or want this plant for trade.

Category:
Perennials

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)

Sun Exposure:
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
Maroon (Purple-Brown)

Bloom Time:
Late Spring/Early Summer

Foliage:
Grown for foliage
Herbaceous
Mottled

Other details:
Average Water Needs; Water regularly; do not overwater
This plant may be considered a protected species; check before digging or gathering seeds

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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Thumbnail #6 of Trillium underwoodii by kudrick

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Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral macybee On Nov 23, 2007, macybee from Deer Park, TX (Zone 9a) wrote:

It is virtually impossible to distinguish between non-flowering plants of T decipiens and T underwoodii. The major difference is one of stature of flowering plants, and the ratio of leaf length to stem height. In T underwoodii the stems are 3" to 8" tall and 1 to 1.5 times the leaf length, whereas in T decipiens the ratio increases to over 3, the leaf size remaining similar.

Regional...

This plant has been said to grow in the following regions:

Anniston, Alabama
Havana, Florida
Miccosukee Cpo, Florida
Newport, Kentucky
Fallston, Maryland
Saint Louis, Missouri



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