Species, Natural Hybrid Orchid, Spiranthes, Austral Ladies Tresses, Christmas Lily

Spiranthes sinensis

Family
Orchidaceae (or-kid-AY-see-ee)
Genus
Spiranthes (spy-RAN-theez)
Species
sinensis (sy-NEN-sis)
Synonym
Spiranthes congesta
Spiranthes densa
Spiranthes parviflora
Spiranthes stylites
Spiranthes viridiflora
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage
Deciduous
Height
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
Spacing
3-6 in. (7-15 cm)
Hardiness
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
Danger
N/A
Bloom Color
Pink
Bloom Time
Mid Summer
Late Summer/Early 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
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
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Seed does not store well; sow as soon as possible
Regional

This plant is said to grow outdoors in the following regions:

Townsend, Georgia

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Gardener's Notes:

2
positives
2
neutrals
0
negative
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J
Toronto, ON (Zone 6a) | March 2017 | neutral

Very easy to grow. Flowers have odour instead of fragrance so the pollinators are usually flies instead of bees.

Flower...Read More

M
M
| August 2003 | neutral

It is cultivated by both tropical and hardy orchid growers. It spreads fast from seed (yes, it actually does, in the greenhouses it might...Read More

N
N
Frankfort, KY | July 2003 | positive

Found throughout Japan. Also found in China, Korea, Taiwan, etc., and it seems to have established in Florida. There are a few varieties....Read More

K
(Zone 10a) | April 2003 | positive

Seeing there are two species of Ladies Tresses already in the database, I thought it appropriate to add the Australian species. It is int...Read More

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