Nodding Lady's Tresses 🛑 Endangered

Spiranthes cernua

Also known as: Navasota Lady's Tresses

Native to:
Canada, Prince Edward I., United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Orchidaceae
Genus:
Spiranthes
Species:
Spiranthes cernua
USDA Symbol:
SPCE

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Epiphyte
Height:
45 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
aug,sep,oct,nov
Bloom Colors:
white, cream

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)

Garden & Ecology Notes

Wildlife Value:
bees, bumblebees
Deer Resistant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Often found in fire-maintained wet prairies and meadows; tolerates periodic burning which reduces competition.

Soil Requirements

Soil Type:
moist, rich, organic loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Commonly found in wet meadows and marshes

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Notes:
Orchid seeds require mycorrhizal fungi for germination; rarely successful without laboratory conditions or symbiotic fungi present.

The above propagation data sourced from Claude AI

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.

Source: Claude AI

ORGHPS Germination Guide: See http://prairieecologist.com/2011/08/15/ladys-tresses-orchids-in-prairie-seedings/

Source: Ontario Rock Garden & Hardy Plant Society