Source: Wikimedia Commons
Habenaria Radiata
IntermediatePecteilis radiata
A Japanese terrestrial orchid with flowers resembling white egrets in flight, a summer icon.
About
Habenaria radiata, the White Egret Orchid (sagiuso in Japanese), is a tuberous terrestrial orchid native to wetlands and moist grasslands in Japan, China, and the Korean Peninsula. The common name refers to the striking resemblance of the pure white flowers to a white egret in flight, with the deeply fringed lateral petals forming wing-like extensions. Plants grow 15–30 cm, bearing one to four flowers per stem in summer (July–August). Tubers are lifted and stored dry after the foliage dies in autumn, then replanted in spring. A well-draining medium of sphagnum or pumice-based soil and ample water during the growing season are key requirements. It is one of Japan's most beloved summer wildflowers.
Basic Info
Origin
Japan, China, and Korean Peninsula, wetlands and moist grasslands
Lifespan
Annual from tubers
Size
15-30cm
Temperature
15〜30℃
Humidity
50〜70%
Watering & Fertilizer
−
Growing Tips
Culture
Tuber culture in moss
Bloom
Summer
Watering
Keep constantly moist
Winter
Store tubers
Habenaria Radiata FAQ
QWhat is the growing difficulty level for Habenaria Radiata?
Intermediate. A variety suitable for intermediate growers. Requires some cultivation experience and knowledge of environment management. Pay careful attention to temperature and humidity control.
QWhat is the ideal temperature for Habenaria Radiata?
The ideal temperature for Habenaria Radiata is 15〜30℃. Recommended humidity is 50〜70%. Avoid sudden temperature changes and maintain a stable environment.
QWhat is the lifespan of Habenaria Radiata?
The average lifespan of Habenaria Radiata is Annual from tubers. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.
QHow large does Habenaria Radiata get?
The mature size of Habenaria Radiata is 15-30cm. This may vary slightly depending on cultivation environment and individual differences.
QHow should I water and fertilize Habenaria Radiata?
Habenaria Radiata: watering & fertilizer — −. Aim for appropriate frequency and amount.
QWhat is the typical price for Habenaria Radiata?
The price of Habenaria Radiata varies significantly by variety, characteristics, size, and lineage. Please check ボタちょく's price guide for the latest market information.
Last updated: July 8, 2026
Growing Specifications
- Hardiness (RHS)
- H2
References & Sources
Edited & verified by: BoTachoku Editorial Team
The classifications, regulations, and growing data on this page are created and verified based on the primary information database below.
Taxonomy & Authority
Accepted name: Pecteilis radiata (Thunb.) Raf.
Synonyms: Hemihabenaria radiata, Habenaria radiata var. dianthoides, Orchis radiata, Platanthera radiata, Plantaginorchis dianthoides, Orchis susannae, Plantaginorchis radiata, Habenaria dianthoides
Authority databases: GBIF · POWO · RHS 蘭交配種登録(International Orchid Register) · AOS(米国蘭協会)
Nomenclature follows global taxonomic authority databases.
Regulations & Conservation Status
ラン科 Orchidaceae は科全体が CITES 附属書II（附属書I 該当の Paphiopedilum 属・Phragmipedium 属および特定種を除く）。栽培品種・交配種も科の規制を受けるが、人工繁殖個体は附属書により取引が簡略化される場合がある。
Sources: CITES Appendices (Orchidaceae spp. = Appendix II) / CITES Appendix I Orchid Checklist (Kew/UNEP-WCMC 2019)
Regulations may change. Always verify the latest information with the relevant authorities.
Related Species
Find listings for this species
Related Articles
Complete Guide to Windowsill Mini Orchid Cultivation | Tips for Growing Fragrant Orchids in Compact Spaces and Low-Light Environments
A practical guide to growing miniature orchids on the windowsill. Learn how to optimize light, humidity, and fertilizer management to achieve repeated blooms of fragrant orchids in limited indoor spaces.
Paphiopedilum (Lady's Slipper Orchid): Seasonal Management and Flowering Tips
Paphiopedilum (Lady's Slipper Orchid): Seasonal Management and Flowering Tips
A Guide to Orchids for Business Opening Gifts | Budget, Plaque Etiquette & Foliage Plant Alternatives
A guide to selecting orchids for business opening celebrations. Covers price ranges, how to write plaques, gifting etiquette, and recommendations for giving foliage plants as alternatives.
Decoding AOS Orchid Awards: Understanding FCC, AM, HCC and the Point System
The American Orchid Society (AOS) evaluates flowers using a 100-point scale. This article explains the grading system (FCC, AM, HCC) and how it differs from domestic Japanese orchid show evaluations.