Barksdale Trillium
Trillium sulcatum
Found in coves and moist slopes. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you
Native to Alabama. How scores work Is it native here?
Profile 100%
- Height
- 1–2 feet
- Spread
- 1–3 feet
- Light
- Deep shade, Partial shade
- Soil moisture
- Usually moist
Space about 2 ft apart from its recorded spread, about 25 per 100 sq ft. Enter your bed size for a count
Will it fit your yard?
Rare or protected plant. Specialist conservation planting; excluded from routine garden suggestions. Plant caution source
Hidden from default planting suggestions. Wildlife value and native status remain unchanged.
At a glance
- Life cycle
- Perennial
- Bloom
- April to May
Not yet recorded · Leaves
Recorded in 4 Alabama counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

Forests on moist but not wet ground, such as rich slopes and ravines.
Who uses this plant?
2CaterpillarsGenus host records with ranges including AL
Genus host records with ranges including AL · Trillium
- Euplexia benesimilisAmerican Angle Shades
- Scopula ordinata
1BeesSoutheastern regional records
Southeastern regional records · Trillium
Individual names are not available yet.
Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Trilliaceae
- Hardiness
- Zones 4a–7b
- Soil pH
- Acidic to neutral
- Flower color
- Yellow, purple, red, variegated or white
Growing sources and scope
- Bloom · “April to May” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Flower color · “Yellow, purple, red, variegated or white” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Hardiness · “Zones 4a–7b” · NC Extension Plant Toolbox
- Height · “1–2 feet” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards differs)
- Life cycle · “Perennial” · NC Extension Plant Toolbox
- Light · “Deep shade (less than 2 hours to no direct sunlight); Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox
- Soil · “Moist” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards differs)
- Soil pH · “Acidic to neutral” · NC Extension Plant Toolbox
- Spread · “1–3 feet” · NC Extension Plant Toolbox
Also known as
Southern Red Trillium
Conservation status
| Alabama rank | S1 |
|---|---|
| Global rank | G4 |
| AL status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- Alabama Plant Atlas
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition
- NatureServe Explorer
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications

