Formosan Lady's Slipper Orchid
Cypripedium formosanum
Essentials
At a Glance
Plant Type
Perennial
Height
8 inches
Width
12 inches
Light
Partial Sun, Shade
Zones
5, 6, 7, 8
Water
Consistently moist
Humidity
High humidity preferred
Lifespan
Perennial
Native To
Formosa (Taiwan)
Toxicity
Non-toxic
The Story
Plant Bio
Cypripedium formosanum is a deciduous orchid distinguished by its elegant, slipper-shaped flowers and lush, green foliage. It produces striking white blossoms with distinctive purple markings, thriving in shaded, woodland environments. This species is notable for its vibrant, highly ornamental flowers that bloom in spring, making it a prized choice for shaded garden settings and orchid enthusiasts.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck rhizomes into well-draining, humus-rich soil in partial shade.
- Mist young plants daily to maintain moisture levels.
- Water regularly to keep soil moist but not soggy, especially in dry periods.
- Apply a balanced, organic fertilizer in early spring for healthy growth.
- Mulch around plants to retain soil moisture and regulate temperature.
- Transplant in early spring if necessary, avoiding disturbed roots.
Pro Tip
Ensure consistent moisture and shade for best flowering performance.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 🌱
- Provide shade during hottest part of the day
- Mulch to retain moisture and suppress weeds
- Feed with organic fertilizer in spring
Don't
- Allow soil to dry out completely ❌
- Expose to direct, harsh sunlight ❌
- Disturb roots during the growing season ❌
- Overfertilize, which can cause leaf burn
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Plant | ||||||||||||
| Spring Cleanup | ||||||||||||
| Winter Prep |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Formosan Lady's Slipper Orchid questions
What zones can Formosan Lady's Slipper Orchid grow in?
Formosan Lady's Slipper Orchid is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Formosan Lady's Slipper Orchid deer resistant?
Not reliably. Deer may browse Formosan Lady's Slipper Orchid, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Formosan Lady's Slipper Orchid bloom?
Formosan Lady's Slipper Orchid typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Formosan Lady's Slipper Orchid need full sun?
Formosan Lady's Slipper Orchid does best in part shade.
More Cypripedium to compare
Small Yellow Lady's Slipper
Cypripedium parviflorum 'var parviflorum'
Showy Lady's Slipper
Cypripedium reginae
Sabine's Lady's Slipper
Cypripedium sabine
Lady's Slipper Orchid Hybrid Emil
Cypripedium x hybrida 'Emil'
Gabriela's Lady's Slipper
Cypripedium x gabrieleae 'Gabriela'
Gisela Lady's Slipper
Cypripedium x godefroianum 'Gisela'
Keep exploring
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Hardy in your zone?
Grow Formosan Lady's Slipper Orchid with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
