Giant Cowbane

Tiedemannia filiformis subsp. greenmannii

Native to:
United States

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Apiaceae
Genus:
Tiedemannia
Species:
Tiedemannia filiformis subsp. greenmannii
USDA Symbol:
OXGR5

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
150 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
aug,sep,oct,nov
Bloom Colors:
white

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Host Plant for Caterpillars

Black Swallowtail (Papilio polyxenes)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, wasps
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Occurs in wet pine flatwoods and savannas maintained by periodic fire; resprouts from rootstock after burns.

Soil Requirements

Soil Type:
moist, sandy, nutrient-poor soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
commonly found in wetland areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days

The above propagation data sourced from Claude AI