
Irish lady's-tresses
Spiranthes romanzoffiana
Irish lady's-tresses is a rare native terrestrial orchid that requires moist, nutrient-poor soil and cool temperatures to thrive. It is best grown in bog gardens or along stream margins where conditions mimic its natural wet meadow habitat. This species is highly sensitive to soil disturbance and chemical fertilizers, so minimal intervention is key.
Care Level
High
Sun
Partial Shade
Water
Moderate
Growth Rate
Moderate
Mature Height
12″ – 48″
Soil
loam
Life Cycle
Perennial
Spacing
6″
Flowers
white
Watering Schedule
Every 5-7 Days • Keep Soil Consistently Moist But Never Waterlogged
Soil pH
4.5 – 8.5
Temperature
-25° – 95°F
Mature Spread
up to 36″
Root Depth
Medium
Foliage
Medium
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Jan 1, 1900 by EOL − Dcrjsr (cc-by)
No nurseries currently have this species in stock.