Growing conditions
Cool Temperature class
21–1,440m Elevation
8°C Day/night drop
786mm Annual rainfall
Year-round Rainfall pattern
Temperature
49°N Northern Hemisphere Day high Night low Range across populations
Rainfall
786mm/yearJan 2° -2–5 -4° -9–-1 61mm
Feb 3° -1–6 -4° -9–-0 50mm
Mar 7° 3–10 -1° -5–2 56mm
Apr 12° 10–13 3° 0–4 54mm
May 18° 16–19 7° 5–8 66mm
Jun 21° 19–23 11° 9–11 73mm
Jul 23° 21–25 13° 12–14 75mm
Aug 23° 21–25 12° 11–13 71mm
Sep 18° 16–20 9° 7–10 69mm
Oct 13° 11–15 5° 3–7 70mm
Nov 7° 5–9 1° -2–3 72mm
Dec 3° 0–6 -2° -6–1 69mm
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Hybrids from Epipactis helleborine
As seed parent
Epipactis × amigoi × Epipactis kleinii
Epipactis × athensis × Epipactis palustris
Epipactis × breinerorum × Epipactis greuteri
Epipactis × conquensis nothosubsp. amigoi × Epipactis kleinii
Epipactis × lachmanii × Epipactis neglecta
Epipactis × populetorum × Epipactis hispanica
Epipactis × reinekei × Epipactis muelleri
Epipactis × stephensonii × Epipactis leptochila
Epipactis × trikalana × Epipactis thessala
Epipactis Baskerville × Epipactis palustris
Epipactis Fuego × Epipactis veratrifolia
Epipactis Peter × Epipactis thunbergii
Epipactis hybrid D × Epipactis kleinii
Epipactis hybrid E × Epipactis rhodanensis