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Species, Natural Hybrid Orchid, Platanthera, Large Purple Fringed Orchid

Platantheragrandiflora

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Platanthera grandiflora by rcn48
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Family
Orchidaceae (or-kid-AY-see-ee)
Info
Genus
Platanthera (pla-TAN-ther-uh)
Info
Species
grandiflora (gran-dih-FLOR-uh)
Info
Synonym
Habenaria grandiflora
Orchis grandiflora
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Smooth
Textured
Height
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
Spacing

Unknown - Tell us

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)
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)
Danger

Unknown - Tell us

Bloom Color
Pink
Magenta (pink-purple)
Bloom Time
Mid Summer
Other Details
Category
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens
Foliage Color

Unknown - Tell us

Where to Grow

Unknown - Tell us

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size

Unknown - Tell us

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)
Patent Information

Unknown - Tell us

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

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

Cresco, Pennsylvania

Leesburg, Virginia

Menomonie, Wisconsin

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12 members have or want this plant for trade

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Gardener's Notes:

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Todd_Boland
St. John's, NL (Zone 5b) | March 2004 | positive

One of the lovliest Platanthera species. The dense spikes of flowers are very showy. Can be grown in cultivation if great care is taken...Read More

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