{"date":"0001-01-01T00:00:00Z","lastmod":"2026-05-31T22:27:37Z","params":{"author":"Sophie","categories":["Arbustes"],"climate":{"compatibility":{"continental":{"label":"très rustique avec bonne reprise printanière","score":4},"mediterranean":{"label":"possible avec paillage et arrosages de soutien en été","score":3},"mountain":{"label":"adaptée en zone ensoleillée hors vent desséchant","score":3},"oceanic":{"label":"très bon comportement si la taille est régulière","score":4},"tropical":{"label":"peu adaptée aux chaleurs humides continues","score":1}},"hardiness":{"max_c":35,"min_c":-20},"usda":{"max":"8","min":"4"}},"complexity":{"global_score":2,"profile":{"beginner_friendly":true,"container_friendly":true,"indoor_friendly":false}},"description":"Guide pratique pour réussir la spirée du Japon : exposition, plantation, arrosage, taille, culture en pot et entretien selon les climats français.","dimensions":{"height_cm":{"max":150,"min":60},"spread_cm":{"max":160,"min":80}},"draft":false,"environment":{"drainage":{"importance":"high","value":"drainé, sans stagnation hivernale"},"exposure":{"importance":"high","tolerance_score":3,"value":"soleil à mi-ombre lumineuse"},"ph":{"max":7.5,"min":5.8},"soil":{"importance":"high","type":"ordinaire à frais, drainé"},"soil_texture":["limoneux","argilo-limoneux drainé","sableux enrichi"]},"families":["Rosaceae"],"ideal_conditions":{"drainage":{"importance":"high","value":"important en hiver"},"exposure":{"importance":"high","value":"soleil non brûlant ou mi-ombre claire"},"ph":{"max":7.2,"min":6},"soil":{"importance":"high","value":"terre de jardin souple, fertile sans excès d'azote"},"spacing_cm":100,"temperature":{"importance":"medium","max_c":30,"min_c":-15},"watering":{"frequency":"suivi en installation puis ponctuel","importance":"medium"}},"image":"spiree-du-japon.jpg","iscjklanguage":false,"jsonld":{"enabled":true,"type":"Taxon"},"lastmod":"2026-05-31T22:27:37Z","lifecycle":{"bloom_months":["juin","juillet","août"],"planting_months":["mars","avril","mai","octobre","novembre"],"pruning_months":["février","mars"]},"outputs":["HTML","JSON"],"plant":{"common_name":"Spirée du Japon","family":"Rosaceae","genus":"Spiraea","growth_rate":{"score":3,"value":"moyenne à rapide"},"lifecycle":"vivace ligneuse","origin":"Asie orientale","scientific_name":"Spiraea japonica","species":"japonica","type":"arbuste caduc florifère"},"risks":{"pests":{"sensitivity_score":2},"toxicity":{"severity_score":1,"value":"toxicité significative non documentée en usage ornemental courant; éviter l'ingestion"}},"seo":{"content_depth":"expert","difficulty_score":2,"keywords":["spirée du japon","Spiraea japonica","taille spirée du japon","entretien spirée","planter spirée du japon","spirée en pot"]},"slug":"spiree-du-japon","summary":"La spirée du Japon est un arbuste caduc très florifère en été, facile à cultiver au soleil dans un sol drainé, avec une taille courte en fin d'hiver pour garder un port compact.","tags":["floraison estivale","arbuste caduc","massif ensoleillé"],"title":"Spirée du Japon (Spiraea japonica) : plantation, taille et entretien","type":"plant","uses":{"ecological":true,"edible":false,"medicinal":false,"ornamental":true},"water":{"drought_tolerance":{"score":3},"frequency":{"summer":"arrosez régulièrement les deux premières années puis en période sèche prolongée","winter":"pas d'arrosage en pleine terre sauf hiver exceptionnellement sec"},"humidity":{"importance":"low","value":"faible à moyenne"},"needs":{"importance":"medium","score":2,"value":"modérés"}}},"permalink":"https://plantes-de-jardin-gb.pages.dev/fr/plantes/spiree-du-japon/","relPermalink":"/fr/plantes/spiree-du-japon/","slug":"spiree-du-japon","title":"Spirée du Japon (Spiraea japonica) : plantation, taille et entretien"}