{"date":"0001-01-01T00:00:00Z","lastmod":"2026-05-31T22:27:37Z","params":{"aliases":["/plantes/onagre/"],"author":"Sophie","categories":["Fleurs"],"climate":{"compatibility":{"continental":{"label":"très bonne, surtout avec semis de printemps","score":4},"mediterranean":{"label":"bonne si le semis est lancé avec un peu d'humidité","score":4},"mountain":{"label":"possible en emplacement chaud et bien drainé","score":3},"oceanic":{"label":"bonne en situation ensoleillée et ressuyée","score":4},"tropical":{"label":"peu adaptée aux climats chauds humides constants","score":1}},"hardiness":{"max_c":35,"min_c":-20},"usda":{"max":"9","min":"5"}},"complexity":{"global_score":2,"profile":{"beginner_friendly":true,"container_friendly":true,"indoor_friendly":false}},"description":"Guide complet pour réussir l'onagre bisannuelle : identification, semis, entretien, culture en pot, contrôle du ressemis et erreurs à éviter.","dimensions":{"height_cm":{"max":150,"min":60},"spread_cm":{"max":60,"min":30}},"draft":false,"environment":{"drainage":{"importance":"high","value":"drainé, sans eau stagnante"},"exposure":{"importance":"high","tolerance_score":2,"value":"plein soleil"},"ph":{"max":8,"min":5.8},"soil":{"importance":"high","type":"ordinaire à pauvre, léger à caillouteux"},"soil_texture":["sableux","limoneux","caillouteux"]},"families":["Onagraceae"],"ideal_conditions":{"drainage":{"importance":"high","value":"indispensable pour garder un collet sain"},"exposure":{"importance":"high","value":"soleil direct au moins 6 heures"},"ph":{"max":7.8,"min":6},"soil":{"importance":"high","value":"terre filtrante, peu fertilisée"},"spacing_cm":40,"temperature":{"importance":"medium","max_c":30,"min_c":10},"watering":{"frequency":"régulier au semis puis modéré","importance":"medium"}},"image":"onagre-bisannuelle.jpg","iscjklanguage":false,"jsonld":{"enabled":true,"type":"Taxon"},"lastmod":"2026-05-31T22:27:37Z","lifecycle":{"bloom_months":["juin","juillet","août","septembre"],"harvest_months":["août","septembre","octobre"],"planting_months":["avril","mai","septembre"],"pruning_months":["juin","juillet","août","septembre"],"sowing_months":["mars","avril","mai","septembre","octobre"]},"outputs":["HTML","JSON"],"plant":{"aliases":["Onagre"],"common_name":"Onagre bisannuelle","family":"Onagraceae","genus":"Oenothera","growth_rate":{"score":4,"value":"rapide"},"lifecycle":"bisannuelle, souvent ressemeuse","origin":"Amérique du Nord, largement naturalisée en Europe","scientific_name":"Oenothera biennis","species":"biennis","type":"herbacée bisannuelle"},"risks":{"pests":{"sensitivity_score":2},"toxicity":{"severity_score":2,"value":"prudence générale; éviter l'automédication et les usages alimentaires non maîtrisés"}},"seo":{"content_depth":"expert","difficulty_score":2,"keywords":["onagre bisannuelle","Oenothera biennis","onagre","semis onagre","culture onagre","entretien onagre","onagre au jardin"]},"slug":"onagre-bisannuelle","summary":"L'onagre bisannuelle pousse facilement au soleil en sol drainé. Elle demande peu d'entretien, mais il faut gérer le ressemis pour éviter qu'elle ne se disperse partout.","tags":["plein soleil","sol drainé","fleur mellifère","plante ressemeuse"],"title":"Onagre bisannuelle (Oenothera biennis) : semis, culture et gestion au jardin","type":"plant","uses":{"ecological":true,"edible":false,"medicinal":false,"ornamental":true},"water":{"drought_tolerance":{"score":4},"frequency":{"summer":"arrosez surtout pendant la levée puis espacez; en pleine terre installée, arrosez seulement en sécheresse prolongée","winter":"pas d'arrosage en pleine terre hors semis récent en période sèche"},"humidity":{"importance":"medium","value":"faible à moyenne"},"needs":{"importance":"medium","score":2,"value":"faibles à modérés"}}},"permalink":"https://plantes-de-jardin-gb.pages.dev/fr/plantes/onagre-bisannuelle/","relPermalink":"/fr/plantes/onagre-bisannuelle/","slug":"onagre-bisannuelle","title":"Onagre bisannuelle (Oenothera biennis) : semis, culture et gestion au jardin"}