Rock Garden Plants
Oenothera  perennis L.   
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FamilyONAGRACEAE
Genus species var.Oenothera  perennis L. 
SynonymsKneiffia perennis (L.) Pennell
 Kneiffia pumila (L.) Spach
 Oenothera pumila L.
Territory
grassland and thickets
Description basal leaves oblanceolate to spathulate, 2-5cm long, stem leaves narrowly lanceolate, flowers 15-20mm across, sepals often reddish
Size30-40cm
Coloryellow
Bloomsummer
Ca
Typetuft
Cultivationmesic, slightly humous, semi-shady site
alpine house, moist, rich, drained soil, semi-shade
Propagationseed in spring, barely covered, germ. 1-3 months, 18-21°C
division in fall; cuttings in late summer
BibliographyScoggan, H.J. (1978-1979) The Flora of Canada
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý