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Northwest Blooms · Groundcovers

Cypripedium formosanum

Taiwanese Lady's Slipper Orchid

Cypripedium formosanum
Family
Orchidaceae
Height
12 to 18 in
Width
12 to 18 in
Flower color
Soft rose-pink pouch with darker veining and pale pink to white sepals and petals
Foliage color
Medium green, pleated, elliptic leaves with prominent parallel veining
Bloom time
Mid to late spring
Light
Partial shade to bright filtered light
Water
Consistent moisture
Maintenance
Moderate, avoid soil disturbance, remove spent flower stalks after bloom
Growing zone
USDA zones 6 to 9
Wildlife
Occasional pollination by native bees and small insects

About this plant

Cypripedium formosanum produces elegant, pouch-shaped flowers in soft rose to lavender pink, marked with deeper veining and a gently inflated lip. The blooms are carried above pleated, oval leaves with pronounced ribbing, creating a bold architectural presence. Upright stems support single flowers that hold their form well through the flowering period.

Blooming in late spring to early summer, this species is native to the mountains of Taiwan. It is valued in woodland gardens, shade borders, and specialty plantings, where its refined flowers pair naturally with ferns and spring ephemerals, offering seasonal interest and a distinctive orchid character in carefully designed landscapes.

Works well in

Woodland Gardens · Pathways & Walkways · Borders · Under Trees

Companion plants

Trilliums · Primroses · Hostas · Siberian buglosses · Hellebores · Japanese anemones

Design tip

Reserve this orchid for intimate garden spaces where its unusual flowers can be appreciated without competing for attention. Surround it with restrained foliage textures that frame the blooms, allowing their distinctive form to become the quiet focal point of the planting.

Where to see it

This plant can be seen at the Bellevue Botanical Garden.