Growing conditions
Cool Temperature class
150–3,396m Elevation
11°C Day/night drop
500mm Annual rainfall
Jan, Feb, Mar, Apr, Dec Dry rest
Temperature
53°N Northern Hemisphere Day high Night low Range across populations
Rainfall
500mm/year Dry rest period: Jan, Feb, Mar, Apr, Dec - reduce watering during these months
Jan -12° -14–-9 -21° -25–-19 19mm
Feb -10° -11–-7 -21° -23–-18 15mm
Mar -2° -3–-1 -14° -16–-12 15mm
Apr 8° 6–10 -3° -5–-2 29mm
May 16° 14–18 3° 1–5 45mm
Jun 22° 20–23 9° 7–11 65mm
Jul 24° 23–25 12° 10–13 83mm
Aug 21° 20–23 10° 9–11 79mm
Sep 15° 14–17 4° 2–5 51mm
Oct 7° 5–9 -3° -5–-1 42mm
Nov -4° -5–-1 -12° -14–-10 32mm
Dec -9° -12–-6 -18° -22–-16 25mm
Bloom Season
Based on 1 Cypripedium awards. Showing genus-level data.
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Awards
AM / AOC 2011 'Helen'
80.10 points Exhibited by Davidson B. & L. TAS 29 September 2011
Measurements
Flower size 68 × 60 mm Petals 50 × 8 mm Dorsal sepal 18 × 13 mm Lateral sepals 23 × 13 mm Lip 30 × 25 mm
Segments white 155A with red 60 B & C. One flower on 300mm stem.
View on AOC website ↗Hybrids from Cypripedium macranthos
As seed parent
Cypripedium × catherinae × Cypripedium shanxiense
Cypripedium Annette × Cypripedium candidum
Cypripedium Bärbel Schmidt × Cypripedium montanum
Cypripedium Bernd × Cypripedium segawai
Cypripedium Betty Maier × Cypripedium parviflorum {var} planipetalum
Cypripedium Birgit × Cypripedium cordigerum
Cypripedium Bärbel Schmidt × Cypripedium montanum
Cypripedium Eurasia × Cypripedium tibeticum
Cypripedium GPH Tom Velardi × Cypripedium Sabine
Cypripedium Karl × Cypripedium franchetii
Cypripedium Kizuna × Cypripedium Carolin
Cypripedium Laila × Cypripedium × andrewsii
Cypripedium Michael × Cypripedium henryi
Cypripedium Peter × Cypripedium yunnanense
Cypripedium Philipp × Cypripedium kentuckiense
Cypripedium Renate × Cypripedium franchetii
Cypripedium Renate Pastel × Cypripedium franchetii
Cypripedium Ventricosum Pastel × Cypripedium calceolus
Cypripedium Werner F. × Cypripedium calcicola [smithii]
Cypripedium Yezo × Cypripedium yatabeanum DARWINARA
As pollen parent
Cypripedium × macranthos {nothof} alboroseum Cypripedium macranthos {var} album ×
Cypripedium × macranthos {nothof} flavoroseum Cypripedium macranthos {var} flavum ×
Cypripedium × ventricosum Cypripedium calceolus ×
Cypripedium Aki Cypripedium parviflorum {var} pubescens ×
Cypripedium Anne Cypripedium reginae ×
Cypripedium Barbarossa Cypripedium Otto ×
Cypripedium Birgit Pastel Cypripedium cordigerum ×
Cypripedium Dawn Edwards Cypripedium lichiangense ×
Cypripedium Elise Cypripedium Ulla Silkens ×
Cypripedium Francis Cypripedium kentuckiense ×
Cypripedium GPH Theresa Cypripedium Lothar Pinkepank ×
Cypripedium Gisela Cypripedium parviflorum ×
Cypripedium Hans Arpagaus Cypripedium � froschii ×
Cypripedium Hedi Cypripedium Ingrid ×
Cypripedium Henning Pinkepank Cypripedium shanxiense ×
Cypripedium Hiraizmi Cypripedium Karl ×
Cypripedium Karel Polivka Cypripedium ventricosum ×
Cypripedium Lettika Cypripedium californicum ×
Cypripedium Margot de la Moder Cypripedium Rascal ×
Cypripedium Sabine Cypripedium fasciolatum ×
Synonyms
Cypripedium calceolusCypripedium macranthosCypripedium macranthosCypripedium macranthosCypripedium macranthosCypripedium macranthosCypripedium macranthosCypripedium macranthosCypripedium macranthosCypripedium macranthosCypripedium macranthosCypripedium macranthosCypripedium macranthosCypripedium neoparviflorumCypripedium rebunenseCypripedium speciosumCypripedium speciosumCypripedium thunbergiiCypripedium thunbergiiSacodon macranthos