Evening Primrose family
Rosebay willowherb, scientifically known as Chamaenerion angustifolium, is a perennial herbaceous plant belonging to the Onagraceae family. Historically valued for its medicinal properties and as a nectar source, it is now gaining popularity as a cultivated crop for herbal tea production and pharmaceutical applications.
What the section contains
Clarkia
Clarkia
4 items
Evening primrose
Oenothera L.
16 items
Adriatic evening primrose
Oenothera adriatica
Alpine willowherb
Epilobium alpestre
Alpine willowherb
Epilobium anagallidifolium
Amur willowherb
Epilobium amurense
Beach evening primrose
Oenothera humifusa
Billardieri willowherb
Epilobium billardieranum
Bolivian fuchsia
Fuchsia boliviana
Broad-leaved willowherb
Epilobium montanum
Camissonia
Camissonia
1 item
Chicago evening primrose
Oenothera chicagoensis
Clarkia
Clarkia hybrids
Clarkia bottae
Clarkia bottae
Clarkia concinna
Clarkia concinna
Clarkia williamsonii
Clarkia williamsonii
Colchian willowherb
Epilobium colchicum
Creeping primrose-willow
Ludwigia repens
Creeping willowherb
Epilobium brunnescens
Creeping willowherb
Epilobium nummularifolium
Cutleaf evening primrose
Oenothera laciniata
Cylindrical willowherb
Epilobium cylindricum
Dodonaeus willowherb
Chamerion dodonaei
Dull-leaf willowherb
Epilobium obscurum
Enchanter's Nightshade
Circaea
8 items
Epilobium duriaei
Epilobium duriaei
Epilobium erectum
Epilobium erectum
Epilobium fastigiatoramosum
Epilobium fastigiatoramosum
Epilobium foucaudianum
Epilobium foucaudianum
Epilobium hybrids
Epilobium hybrids
Epilobium komarovianum
Epilobium komarovianum
Epilobium pseudorubescens
Epilobium pseudorubescens
Epilobium pyrricholophum
Epilobium pyrricholophum
Evening Primrose
Oenothera lamarckiana
Evening primrose
Oenothera parviflora
Evening primrose
Oenothera villosa
Evening primrose
Oenothera hispida
Evening primrose
Oenothera rubricuspis
Evening primrose
Oenothera rubricalyx
Evening primrose (Oenothera sesitensis)
Oenothera sesitensis
Fireweed
Epilobium L.
1 item
Fireweed
Chamerion
Fragrant evening primrose
Oenothera suaveolens
Fringed willowherb
Epilobium ciliatum
Fuchsia
Fuchsia L.
6 items
Fuchsia coccinea
Fuchsia coccinea
Fuchsia corymbiflora
Fuchsia corymbiflora
Fuchsia fulgens
Fuchsia fulgens
Fuchsia hatschbachii
Fuchsia hatschbachii
Fuchsia hybrids
Fuchsia hybrids
Fuchsia microphylla
Fuchsia microphylla
Fuchsia procumbens
Fuchsia procumbens
Fuchsia splendens
Fuchsia splendens
Fuchsia thymifolia
Fuchsia thymifolia
Globe-fruit Ludwigia
Ludwigia sphaerocarpa
Godetia
Godetia
1 item
Gray willowherb
Epilobium cinereum
Hairy willowherb
Epilobium hirtigerum
Hartweg's evening primrose
Oenothera hartwegii
Hauya
Hauya
1 item
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Evening Primrose family
The plant originates from the temperate regions of the Northern Hemisphere, where it frequently colonizes burnt or disturbed forest lands. This ecological adaptability makes it a relatively low-maintenance crop. It thrives in various soil types, ranging from sandy loams to slightly acidic forest soils, provided they offer good drainage and exposure to direct sunlight.
Botanically, it features tall, erect stems growing up to two meters, adorned with narrow lanceolate leaves and terminal spikes of vivid pink-purple flowers. Its root system is exceptionally robust, spreading horizontally through underground rhizomes, which allows the plant to form dense colonies that are difficult to eradicate once established, providing a stable long-term harvest.
Agricultural management requires careful attention to soil moisture during the first year of planting. While fireweed is drought-tolerant once mature, consistent irrigation during the establishment phase ensures higher leaf biomass. The crop is largely perennial; harvest cycles can be repeated for several years without the need for reseeding if the rhizomes remain healthy.
The primary economic value lies in its leaves, which are harvested for drying and fermentation, and its flowers, which are prized by beekeepers for high-quality honey production. Farmers should remain vigilant against common pathogens such as rust fungi and leaf-eating beetles, employing integrated pest management strategies to ensure a clean and organic harvest.