Species Orchid, Hooded Ladies' Tresses, Romanozoff's Ladies Tresses, Romanoff's Spiranthes

Spiranthesromanzoffiana

Family
Orchidaceae (or-kid-AY-see-ee)
Genus
Spiranthes (spy-RAN-theez)
Species
romanzoffiana (roh-man-zoff-ee-AH-nuh)
Synonym
Gyrostachys gemmipara
Gyrostachys romanzoffiana
Gyrostachys stricta
Spiranthes gemmipara
Spiranthes stricta
Sun Exposure
Light Shade
Foliage
Herbaceous
Height
6-12 in. (15-30 cm)
Spacing
6-9 in. (15-22 cm)
Hardiness
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)
Bloom Color
Pale Green
White/Near White
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Other Details
Category
Perennials
Water Requirements
Very high moisture needs; suitable for bogs and water gardens
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; germinate in vitro in gelatin, agar or other medium
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

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Gardener's Notes:

0
positive
1
neutral
0
negative
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St. John's, NL (Zone 5b) | December 2004 | neutral

Another very common Newfoundland orchid, this one is the last to bloom locally, often not until late August or early Septemver. The main...Read More

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