Calypso bulbosa

(c) Rodrigo Sala, some rights reserved (CC BY-ND) via iNaturalist

Species

Fairy-slipper

Calypso bulbosa

Calypso bulbosa, or Fairy-slipper, is a delicate orchid with striking flowers and a unique ecological role.

Calypso bulbosa, commonly known as the Fairy-slipper, is a perennial orchid native to the northern temperate regions, including parts of North America, Europe, and Asia. This species typically grows in moist, shaded environments, often found in coniferous or mixed forests, and reaches a height of about 10 to 30 centimeters. The plant has a distinctive growth habit characterized by a single, broad leaf that emerges from the base, and a solitary flower that blooms in spring, showcasing a delicate, pinkish-purple hue with intricate markings, resembling a slipper, which is where its common name derives from.
The flowers of Calypso bulbosa are not only visually striking but also play a crucial role in its reproductive ecology, attracting specific pollinators such as bees. The fruit is a capsule that contains small seeds, which are dispersed by wind and can germinate under suitable conditions, often in symbiosis with mycorrhizal fungi. This species has adapted to its environment by developing a unique relationship with these fungi, which aids in nutrient absorption. While not widely utilized by humans, its beauty makes it a subject of interest in horticulture and conservation efforts, particularly as habitats are threatened by development and climate change.

Care Guide

🌱 Hardiness Zone
Zone 3–7
🪨 Soil
Well-draining, loamy to sandy
☀️ Light
Partial shade to full shade
💧 Water
Moderate, drought-tolerant once established
🌿 Fertilization
Minimal, if any, as they thrive in nutrient-poor soils.

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Browse This Plant's Classification

Domain Eukaryota
Kingdom Plantae
Phylum Tracheophyta
Class Magnoliopsida
Order Orchidales
Family Orchidaceae
Genus Calypso
Species Calypso bulbosa