Plants in genus spiranthes
Spiranthes odorata
Spiranthes odorata, commonly known as the fragrant lady's tresses, is a native orchid of the southeastern United States. This herbaceous perennial thrives in moist, partially shaded environments, often found in bogs or swamps. It features dense vertical rows of white, hooded flowers that emit a fragrance reminiscent of vanilla and jasmine. Blooming from late summer to autumn, these flowers are pollinated by bumblebees. The plant grows up to 20 inches tall and spreads slowly through underground rhizomes. It is hardy to 14°F and requires protection in frosty areas. The cultivar 'Chadd's Ford' has received the Royal Horticultural Society's Award of Garden Merit.
Spiranthes cernua
Spiranthes cernua, commonly known as the nodding lady's tresses, is a fall-blooming bog orchid native to North America. It features a spiral of fragrant white flowers on a tall stem, blooming from late summer until after the first frost. This orchid grows in open, acidic bogs and is adaptable to drier conditions if the soil remains damp during flowering. It is winter hardy and sensitive to mineral buildup, requiring rain or distilled water for irrigation.
Spiranthes vernalis
Spiranthes vernalis, also known as the spring ladies' tresses, is a native orchid species of the eastern United States. It features 18-inch tall twisting spiral spikes adorned with tiny white flowers that bloom in early June. This perennial thrives in acidic loamy soils and serves as a nectar source for native bees. It is typically found in mossy forests and ridge-top vegetation, adding a delicate touch to natural landscapes. The plant is dormant after seed set and is well-suited for cottage gardens and native plantings.
Spiranthes sinensis
Spiranthes sinensis is a species of orchid native to eastern and southeastern Asia, known for its pale blush-pink flowers that spiral around the stalk. This evergreen plant forms a ground-hugging rosette and blooms in spring, reaching up to 15 inches in height by mid-July. It prefers average to slightly moist soil and part-day sun, making it a charming addition to gardens that mimic its native habitat. The plant is an Asian counterpart to native spiranthes orchids and is composed of six distinct species, adding a touch of exotic beauty to any collection.