Species Orchid, Northern Twayblade, Northern Neottia
Listeraborealis

Synonym:Listera borealis

Synonym:Ophrys borealis

Category
Perennials

Water Requirements
Requires consistently moist soil; do not let dry out between waterings

Sun Exposure
Sun to Partial Shade
Light Shade
Partial to Full Shade

Foliage
Herbaceous

Foliage Color

Height
under 6 in. (15 cm)

Spacing

Hardiness
USDA Zone 2b: to -42.7 °C (-45 °F)
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
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)

Where to Grow

Danger

Bloom Color
Chartreuse (yellow-green)

Bloom Characteristics

Bloom Size

Bloom Time
Mid Summer
Late Summer/Early Fall

Other details

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

Patent Information
Non-patented

Propagation Methods
From seed; germinate in vitro in gelatin, agar or other medium

Seed Collecting
Allow pods to dry on plant; break open to collect seeds