{"id":887,"date":"2007-01-20T00:20:43","date_gmt":"2007-01-20T00:20:43","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogjardin\/2007\/01\/20\/faire-refleurir\/"},"modified":"2012-08-27T10:00:13","modified_gmt":"2012-08-27T10:00:13","slug":"faire-refleurir","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogjardin\/2007\/01\/20\/faire-refleurir\/","title":{"rendered":"Comment conserver un poinsettia"},"content":{"rendered":"

<\/a>\"Poinsettia_jaune_uni\"<\/a> C’est le casse-t\u00eate de tous ceux qui veulent garder le poinsettia<\/a> qu’ils ont chouchout\u00e9 pendant plusieurs semaines et qui le voient se faner.<\/p>\n

Dans la nature ces euphorbes<\/a> originaires du Mexique poussent \u00e0 l’\u00e9tat sauvage et mesurent 3 \u00e0 4 m de haut, ceux qui sont vendus chez nous dans le commerce ne d\u00e9passent pas 50 cm et ont \u00e9t\u00e9 mis en condition pour "fleurir<\/a>" au moment des f\u00eates de fin d’ann\u00e9e. Et c’est certainement la plante la plus vendue pendant cette p\u00e9riode, du reste ces couleurs rouge et verte se pr\u00eatent bien \u00e0 cette occasion mais il existe des hybrides pr\u00e9sentant d’autres coloris tout aussi beaux, comme la vari\u00e9t\u00e9 jaune que j’ai prise en photo.<\/p>\n

Pour conserver votre poinsettia il va falloir que vous fassiez preuve de patience et que vous soyez tr\u00e9s m\u00e9thodique, pas question se sauter un stade sous peine de voir vos efforts an\u00e9antis.<\/p>\n

La coloration des bract\u00e9es dure environ 4 mois, quand les feuilles commenceront \u00e0 faner, la premi\u00e8re chose \u00e0 faire est de r\u00e9duire les arrosages en laissant la terre presque s\u00e8che. <\/p>\n

Installez votre poinsettia dans une pi\u00e8ce \u00e0 temp\u00e9rature mod\u00e9r\u00e9e ( pas moins de 12 , pas plus de 20 degr\u00e9s) cela pendant plusieurs semaines.<\/p>\n

Au mois de mai, taillez s\u00e9v\u00e8rement votre plante et rempotez-la mais faites attention aux racines<\/a> qui sont fragiles. Lorsque les gel\u00e9es ne seront plus \u00e0 craindre, laissez votre poinsettia dehors \u00e0 l’ombre, arrosez et fertilisez r\u00e9guli\u00e8rement tout l’\u00e9t\u00e9.<\/p>\n

Fin septembre, les jours commencent \u00e0 raccourcir il est temps de passer \u00e0 la phase cruciale qui va donner \u00e0 votre poinsettia le signal qu’il doit refleurir. C’est une plante \u00e0 jours courts, cela veut dire qu’elle a besoin d’une p\u00e9riode o\u00f9 les nuits sont tr\u00e9s longues (de 12 \u00e0 14 h) et cela n’est qu\u00e8re possible dans nos int\u00e9rieurs \u00e0 cause de nos lampes \u00e9lectriques. <\/p>\n

Alors que faire ? Si vous avez une pi\u00e8ce inoccup\u00e9e, chauff\u00e9e et lumineuse le jour c’est parfait , laissez-y votre plante mais n’allumez jamais la lumi\u00e8re le soir m\u00eame bri\u00e8vement. Autre solution, enfermez tous les soirs \u00e0 18h votre plante dans une armoire, un carton, un placard que vous n’ouvrirez pas avant le lendemain.<\/p>\n

Il lui faut le noir vraiment complet pendant ces longues nuits et cela pendant au moins 2 mois, apr\u00e9s quoi votre patience sera r\u00e9compens\u00e9e et vous verrez les bract\u00e9es se colorer. <\/p>\n

Je vous l’accorde, comme c’est un travail qui ne demande aucune d\u00e9faillance il est plut\u00f4t astreigant !<\/p>\n","protected":false},"excerpt":{"rendered":"

C’est le casse-t\u00eate de tous ceux qui veulent garder le poinsettia qu’ils ont chouchout\u00e9 pendant plusieurs semaines et qui le voient se faner. Dans la nature ces euphorbes originaires du Mexique poussent \u00e0 l’\u00e9tat sauvage et mesurent 3 \u00e0 4 m de haut, ceux qui sont vendus chez nous dans le commerce ne d\u00e9passent pas […]<\/p>\n","protected":false},"author":354,"featured_media":2977,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,18,4],"tags":[],"class_list":["post-887","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-les-bons-trucs","category-plantes-dinterieur","category-vivaces"],"yoast_head":"\nComment conserver un poinsettia - Le blog jardin<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.thesocialmedia.com\/leblogjardin\/2007\/01\/20\/faire-refleurir\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comment conserver un poinsettia - Le blog jardin\" \/>\n<meta property=\"og:description\" content=\"C’est le casse-t\u00eate de tous ceux qui veulent garder le poinsettia qu’ils ont chouchout\u00e9 pendant plusieurs semaines et qui le voient se faner. 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