Calypso
Calypso bulbosa
Last reviewed: August 2026

Toxicity unknown
Calypso (Calypso bulbosa) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part shade
Water
medium
Size
3"–8" H × 2"–5" W
Bloom
May, Jun
Native to
AZ, CA, CO, ID and 14 more states
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 445 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
Calypso is a rare native orchid that produces a single, distinctive pink and white slipper-shaped flower in late spring. This delicate woodland plant grows from a small bulb and requires very specific soil conditions and mycorrhizal relationships to survive.
In an HOA neighborhood
Calypso takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Extremely difficult to establish and maintain
- May not survive transplanting
- Invisible most of the year
Wildlife value
While native, this orchid has limited documented pollinator relationships and is primarily of conservation interest rather than broad wildlife support.
Common questions
- How much sun does Calypso need?
- Calypso grows best in part shade conditions.
- When does Calypso bloom?
- Calypso blooms in May and June.
- Where is Calypso native?
- Calypso (Calypso bulbosa) is native to AZ, CA, CO, ID and 14 more states, per the World Checklist of Vascular Plants (Kew).
- Is Calypso HOA-friendly?
- Calypso takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Calypso? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz