{"id":17103,"date":"2025-02-04T12:23:57","date_gmt":"2025-02-04T11:23:57","guid":{"rendered":"https:\/\/treevaset.com\/essentiel-bonsai\/acer-palmatum-bonsai-developpement\/"},"modified":"2026-11-10T19:45:28","modified_gmt":"2026-11-10T18:45:28","slug":"acer-palmatum-bonsai-developpement","status":"publish","type":"post","link":"https:\/\/treevaset.com\/fr\/essentiel-bonsai\/acer-palmatum-bonsai-developpement\/","title":{"rendered":"Acer palmatum pour le bonsa\u00ef\u00a0: comportement de croissance et choix de structure"},"content":{"rendered":"<p>L\u2019Acer palmatum est l\u2019une des esp\u00e8ces \u00e0 feuillage caduc les plus polyvalentes pour construire la structure d\u2019un bonsa\u00ef. Sa vigueur mod\u00e9r\u00e9e, une ramification qui r\u00e9pond bien et la diversit\u00e9 de ses cultivars en font une esp\u00e8ce de structure, \u00e0 travailler sur le long terme, plut\u00f4t qu\u2019un choix d\u00e9coratif. Ce guide explique comment l\u2019Acer palmatum se comporte quand on le cultive en bonsa\u00ef, comment il r\u00e9pond aux interventions de structure, et ce qu\u2019il faut prendre en compte pour d\u00e9velopper de jeunes pr\u00e9-bonsa\u00efs au fil des ann\u00e9es. <strong>L\u2019objectif n\u2019est pas l\u2019entretien. C\u2019est un d\u00e9veloppement ma\u00eetris\u00e9.<\/strong><\/p>\n<p>Premier \u00e9rable du Japon\u00a0? Commencez par notre <a href=\"https:\/\/treevaset.com\/fr\/essentiel-bonsai\/entretien-bonsai-erable-japon\/\">guide d\u2019entretien de l\u2019Acer palmatum<\/a> pour les bases, tout au long de l\u2019ann\u00e9e (lumi\u00e8re, arrosage, engrais, taille et hivernage), puis revenez ici pour d\u00e9velopper l\u2019arbre.<\/p>\n<div class=\"tv-glance\">\n<h2>Le d\u00e9veloppement de l\u2019Acer palmatum en bref<\/h2>\n<dl>\n<div>\n<dt>Vigueur<\/dt>\n<dd>Mod\u00e9r\u00e9e, concentr\u00e9e vers l\u2019apex\u00a0: \u00e0 r\u00e9\u00e9quilibrer<\/dd>\n<\/div>\n<div>\n<dt>Entre-n\u0153uds<\/dt>\n<dd>Tr\u00e8s sensibles \u00e0 l\u2019azote et \u00e0 la lumi\u00e8re<\/dd>\n<\/div>\n<div>\n<dt>Bourgeonnement arri\u00e8re<\/dt>\n<dd>Mod\u00e9r\u00e9\u00a0: \u00e0 g\u00e9rer, jamais garanti<\/dd>\n<\/div>\n<div>\n<dt>R\u00e9duction des feuilles<\/dt>\n<dd>Progressive, suit la ramification<\/dd>\n<\/div>\n<div>\n<dt>\u00c9corce<\/dt>\n<dd>Lisse (li\u00e9geuse\u00a0: \u2018Arakawa\u2019, \u2018Allen\u2019s Gold\u2019)<\/dd>\n<\/div>\n<div>\n<dt>Styles<\/dt>\n<dd>Moyogi, shakan, kengai<\/dd>\n<\/div>\n<\/dl>\n<\/div>\n<h2>Pr\u00e9sentation de l\u2019esp\u00e8ce<\/h2>\n<p>Originaire du Japon, de Cor\u00e9e et d\u2019une partie de la Chine, l\u2019Acer palmatum s\u2019est adapt\u00e9 aux sous-bois temp\u00e9r\u00e9s\u00a0: saisons marqu\u00e9es, lumi\u00e8re tamis\u00e9e et humidit\u00e9 r\u00e9guli\u00e8re.<\/p>\n<p>Cultiv\u00e9 en bonsa\u00ef, son comportement d\u00e9pend surtout de\u00a0:<\/p>\n<ul>\n<li>la r\u00e9partition de l\u2019\u00e9nergie<\/li>\n<li>la r\u00e9ponse des entre-n\u0153uds \u00e0 l\u2019azote<\/li>\n<li>l\u2019activation des bourgeons selon la lumi\u00e8re<\/li>\n<li>les caract\u00e8res g\u00e9n\u00e9tiques propres \u00e0 chaque cultivar<\/li>\n<\/ul>\n<p>Comprendre ces m\u00e9canismes est la base d\u2019un d\u00e9veloppement structur\u00e9.<\/p>\n<h2>L\u2019Acer palmatum convient-il \u00e0 votre projet\u00a0?<\/h2>\n<p>L\u2019Acer palmatum peut tr\u00e8s bien convenir au bonsa\u00ef, mais ce ne sont ni la couleur ni la popularit\u00e9 qui en d\u00e9cident. Ce sont la g\u00e9n\u00e9tique, le comportement de croissance et la r\u00e9ponse de la structure au fil du temps, et cela s\u2019\u00e9value <strong>cultivar par cultivar<\/strong>, pas seulement \u00e0 l\u2019\u00e9chelle de l\u2019esp\u00e8ce. Beaucoup d\u2019\u00e9rables du Japon d\u2019ornement sont s\u00e9lectionn\u00e9s pour le jardin plut\u00f4t que pour le contr\u00f4le de la structure, et peuvent manquer des caract\u00e8res n\u00e9cessaires \u00e0 un affinage sur le long terme.<\/p>\n<p>Ce n\u2019est pas non plus une esp\u00e8ce qui fait gagner du temps. Le d\u00e9veloppement sur le long terme demande de la patience, une gestion ma\u00eetris\u00e9e de l\u2019\u00e9nergie et une structure planifi\u00e9e sur plusieurs ann\u00e9es\u00a0: la r\u00e9duction des feuilles est progressive, l\u2019affinage des branches prend du temps, et deux arbres ne se d\u00e9veloppent jamais de la m\u00eame fa\u00e7on. Le d\u00e9veloppement d\u2019un bonsa\u00ef est cumulatif\u00a0: on ne peut pas l\u2019acc\u00e9l\u00e9rer sans compromettre la structure.<\/p>\n<p>Si ces attentes correspondent \u00e0 votre projet, la suite de ce guide d\u00e9crit comment l\u2019esp\u00e8ce se comporte en formation, et le tableau des cultivars, \u00e0 la fin, associe chaque cultivar \u00e0 un objectif de d\u00e9veloppement.<\/p>\n<h2>Comportement de croissance en bonsa\u00ef<\/h2>\n<h3>Les entre-n\u0153uds<\/h3>\n<p>Chez l\u2019Acer palmatum, la longueur des entre-n\u0153uds r\u00e9agit fortement \u00e0\u00a0:<\/p>\n<ul>\n<li>l\u2019intensit\u00e9 des apports d\u2019azote<\/li>\n<li>l\u2019exposition \u00e0 la lumi\u00e8re<\/li>\n<li>la concentration de la vigueur \u00e0 l\u2019extr\u00e9mit\u00e9 des branches<\/li>\n<\/ul>\n<p>Avec beaucoup d\u2019azote et une forte dominance apicale, les entre-n\u0153uds s\u2019allongent vite. Avec des apports d\u2019engrais ma\u00eetris\u00e9s et une taille \u00e9quilibr\u00e9e, ils restent courts et se pr\u00eatent \u00e0 l\u2019affinage.<\/p>\n<p>La longueur des entre-n\u0153uds varie \u00e9norm\u00e9ment d\u2019un cultivar \u00e0 l\u2019autre. \u2018Deshojo\u2019, \u2018Allen\u2019s Gold\u2019 et \u2018Arakawa\u2019 font de longs entre-n\u0153uds en pleine croissance (ils atteignent respectivement 2 \u00e0 4\u00a0m, 3 \u00e0 5\u00a0m et 3 \u00e0 5\u00a0m en pleine terre)\u00a0: un atout pendant le d\u00e9veloppement du tronc, mais qui demande ensuite un contr\u00f4le strict. \u00c0 l\u2019autre extr\u00eame, le \u2018Kotohime\u2019 fait des entre-n\u0153uds tr\u00e8s courts m\u00eame avec des apports d\u2019engrais abondants\u00a0: c\u2019est le plus compact de tous les cultivars de notre collection. \u2018Orihime\u2019 et \u2018Sei Hime\u2019 restent eux aussi naturellement courts, tandis que \u2018Seigen\u2019, \u2018Beni Chidori\u2019, \u2018Beni Tsukasa\u2019, \u2018Katsura\u2019 et \u2018Ukon\u2019 se situent entre les deux, avec des entre-n\u0153uds moyens et faciles \u00e0 g\u00e9rer.<\/p>\n<p>Les jeunes pr\u00e9-bonsa\u00efs ont en g\u00e9n\u00e9ral des entre-n\u0153uds plus longs pendant les phases de d\u00e9veloppement du tronc. C\u2019est acceptable pour la structure, et souvent souhaitable avant le d\u00e9but de l\u2019affinage.<\/p>\n<h3>R\u00e9partition de la vigueur et dominance apicale<\/h3>\n<p>L\u2019Acer palmatum pr\u00e9sente une dominance apicale mod\u00e9r\u00e9e. Les bourgeons ext\u00e9rieurs et les branches hautes poussent plus vigoureusement que les n\u0153uds de l\u2019int\u00e9rieur et du bas de l\u2019arbre. Sans contr\u00f4le, cela entra\u00eene\u00a0:<\/p>\n<ul>\n<li>un d\u00e9s\u00e9quilibre de l\u2019\u00e9nergie<\/li>\n<li>une ramification int\u00e9rieure faible<\/li>\n<li>une perte de potentiel de ramification<\/li>\n<\/ul>\n<p>La taille doit r\u00e9\u00e9quilibrer la r\u00e9partition de l\u2019\u00e9nergie, pas seulement r\u00e9duire la masse du feuillage.<\/p>\n<h3>Le bourgeonnement arri\u00e8re<\/h3>\n<p>La capacit\u00e9 de bourgeonnement arri\u00e8re est mod\u00e9r\u00e9e. Elle d\u00e9pend de\u00a0:<\/p>\n<ul>\n<li>la p\u00e9n\u00e9tration de la lumi\u00e8re<\/li>\n<li>l\u2019\u00e9tat g\u00e9n\u00e9ral de l\u2019arbre<\/li>\n<li>le moment de la taille<\/li>\n<li>la g\u00e9n\u00e9tique du cultivar<\/li>\n<\/ul>\n<p>D\u2019apr\u00e8s notre exp\u00e9rience, \u2018Deshojo\u2019, \u2018Beni Chidori\u2019 et \u2018Beni Tsukasa\u2019 bourgeonnent en arri\u00e8re de fa\u00e7on fiable quand ils sont sains et bien \u00e9clair\u00e9s. \u2018Arakawa\u2019 et \u2018Ukon\u2019 r\u00e9agissent bien eux aussi \u00e0 un rabattage, gr\u00e2ce respectivement \u00e0 leur vigueur et \u00e0 leur croissance rapide. Le \u2018Kotohime\u2019 bourgeonne dens\u00e9ment le long du vieux bois, gr\u00e2ce \u00e0 des n\u0153uds bien marqu\u00e9s. Les cultivars nains plus lents, comme \u2018Orihime\u2019 et \u2018Sei Hime\u2019, bourgeonnent moins volontiers\u00a0: la planification de la structure doit tenir compte de ce rythme.<\/p>\n<p>Le bourgeonnement arri\u00e8re ne se suppose pas. Il se g\u00e8re.<\/p>\n<h2>R\u00e9ponse des feuilles et potentiel de r\u00e9duction<\/h2>\n<p>La taille naturelle des feuilles varie beaucoup selon les cultivars. Le cultivar \u2018Orihime\u2019 a les plus petites feuilles de notre collection\u00a0: des feuilles miniatures, proportionn\u00e9es \u00e0 l\u2019\u00e9chelle du shohin sans aucune technique de r\u00e9duction. \u2018Kotohime\u2019 et \u2018Sei Hime\u2019 suivent de pr\u00e8s. \u00c0 l\u2019autre bout, \u2018Deshojo\u2019, \u2018Allen\u2019s Gold\u2019 et \u2018Arakawa\u2019 partent de grandes feuilles qui se r\u00e9duisent progressivement \u00e0 mesure que la ramification augmente. Les cultivars \u00e0 feuilles moyennes comme \u2018Seigen\u2019, \u2018Beni Chidori\u2019, \u2018Beni Tsukasa\u2019, \u2018Katsura\u2019 et \u2018Ukon\u2019 r\u00e9pondent bien aux techniques habituelles de gestion du feuillage.<\/p>\n<p>La r\u00e9duction des feuilles d\u00e9pend\u00a0:<\/p>\n<ul>\n<li>des apports d\u2019engrais ma\u00eetris\u00e9s<\/li>\n<li>de la densit\u00e9 des racines<\/li>\n<li>du niveau de ramification<\/li>\n<li>de l\u2019\u00e9quilibre de l\u2019\u00e9nergie<\/li>\n<\/ul>\n<p>Un exc\u00e8s d\u2019azote donne des feuilles trop grandes et des entre-n\u0153uds allong\u00e9s. Des apports \u00e9quilibr\u00e9s favorisent les proportions sans forcer la r\u00e9duction trop t\u00f4t. Les couleurs de saison varient selon le cultivar et le climat. Ne comptez jamais sur la couleur comme sur un caract\u00e8re garanti.<\/p>\n<p>Chaque arbre est diff\u00e9rent.<\/p>\n<h2>L\u2019\u00e9corce au fil des ann\u00e9es<\/h2>\n<p>Le caract\u00e8re de l\u2019\u00e9corce se construit lentement et diff\u00e8re selon les cultivars. La plupart des Acer palmatum ont une \u00e9corce lisse, qui passe de tons verts, roses ou rouges au gris avec l\u2019\u00e2ge. Le \u2018Katsura\u2019 se distingue par une \u00e9corce aux tons jaunes, verts et orang\u00e9s, qui garde de l\u2019int\u00e9r\u00eat toute l\u2019ann\u00e9e. Le \u2018Seigen\u2019 prend des tons rose-rouge sur le jeune bois.<\/p>\n<p>Les cultivars \u2018Allen\u2019s Gold\u2019 et \u2018Arakawa\u2019 sont les exceptions\u00a0: tous deux forment une \u00e9corce li\u00e9geuse qui commence \u00e0 se craqueler en \u00e9cailles apr\u00e8s la quatri\u00e8me ann\u00e9e. Le cultivar \u2018Allen\u2019s Gold\u2019 y ajoute un feuillage proche de celui du \u2018Katsura\u2019, tandis que le cultivar \u2018Arakawa\u2019 est le premier et le plus connu des \u00e9rables \u00e0 \u00e9corce li\u00e9geuse, \u00e0 la texture la plus marqu\u00e9e. Pour planifier le d\u00e9veloppement, une \u00e9corce li\u00e9geuse rend les marques de fil moins visibles avec le temps, \u00e0 mesure que la texture se forme\u00a0; les cultivars \u00e0 \u00e9corce lisse gardent plus longtemps les cicatrices de fil et demandent de choisir le moment avec plus de soin.<\/p>\n<h2>Les phases de d\u00e9veloppement d\u2019un jeune pr\u00e9-bonsa\u00ef<\/h2>\n<p>Le d\u00e9veloppement de l\u2019Acer palmatum suit des phases de structure bien distinctes\u00a0:<\/p>\n<div class=\"tv-phase\"><b>1. Phase d\u2019installation<\/b><\/p>\n<p>Sant\u00e9 des racines et adaptation au pot. Aucune tentative d\u2019affinage.<\/p>\n<\/div>\n<div class=\"tv-phase\"><b>2. Phase de d\u00e9veloppement du tronc<\/b><\/p>\n<p>On encourage la vigueur. La longueur des entre-n\u0153uds compte moins. Des branches de sacrifice peuvent \u00eatre utilis\u00e9es \u00e0 bon escient.<\/p>\n<\/div>\n<div class=\"tv-phase\"><b>3. Formation des branches primaires<\/b><\/p>\n<p>La r\u00e9partition de l\u2019\u00e9nergie devient centrale. Le contr\u00f4le des entre-n\u0153uds commence. La direction de la structure se d\u00e9cide.<\/p>\n<\/div>\n<div class=\"tv-phase\"><b>4. Phase d\u2019affinage<\/b><\/p>\n<p>La ramification se densifie. Les entre-n\u0153uds raccourcissent. Les apports d\u2019engrais sont mod\u00e9r\u00e9s.<\/p>\n<\/div>\n<p>Chercher l\u2019affinage trop t\u00f4t limite la qualit\u00e9 de la structure sur le long terme. Les jeunes pr\u00e9-bonsa\u00efs sont faits pour ces d\u00e9cisions \u00e9tape par \u00e9tape.<\/p>\n<p>Le d\u00e9veloppement d\u2019un Acer palmatum ne part pas toujours d\u2019un cultivar nomm\u00e9. L\u2019\u00e9rable de montagne issu de semis (yamamomiji) suit la m\u00eame logique par \u00e9tapes, mais d\u00e8s la premi\u00e8re ann\u00e9e\u00a0: le plant de semis est ligatur\u00e9 t\u00f4t pour fixer une courbe d\u00e9finitive \u00e0 la base (un mouvement qu\u2019on ne peut plus donner \u00e0 un tronc plus \u00e2g\u00e9 et plus rigide), et son nebari est construit d\u00e8s le d\u00e9part, avec des racines \u00e9tal\u00e9es en rayons lors des premiers rempotages plut\u00f4t que corrig\u00e9es plus tard. Comme chaque stade est cultiv\u00e9 chez nous au lieu d\u2019\u00eatre import\u00e9 d\u00e9j\u00e0 form\u00e9, le m\u00eame arbre peut \u00eatre propos\u00e9 \u00e0 chaque phase de d\u00e9veloppement. Pour un exemple concret de ces phases sur un seul arbre issu de semis, voyez notre <a href=\"https:\/\/treevaset.com\/fr\/produit\/acer-palmatum-yamamomiji-bonsai\/\">jeune pr\u00e9-bonsa\u00ef d\u2019Acer palmatum yamamomiji<\/a>.<\/p>\n<h2>Commencer avec un arbre pr\u00eat \u00e0 \u00eatre form\u00e9<\/h2>\n<p>Chaque stade d\u00e9crit dans ce guide est cultiv\u00e9 dans notre propre p\u00e9pini\u00e8re\u00a0: le yamamomiji issu de semis est propos\u00e9 \u00e0 des phases de d\u00e9veloppement successives, du semis droit \u00e0 l\u2019arbre dot\u00e9 de sa premi\u00e8re ramification, \u00e0 c\u00f4t\u00e9 de <a href=\"https:\/\/treevaset.com\/fr\/acer-palmatum-cultivars\/\">11 cultivars nomm\u00e9s<\/a> choisis pour leur potentiel de structure.<\/p>\n\n<h2>Une culture au service du d\u00e9veloppement<\/h2>\n<p>L\u2019arrosage, la lumi\u00e8re et le substrat se g\u00e8rent au service des objectifs de structure.<\/p>\n<h3>Arrosage<\/h3>\n<p>Un substrat toujours l\u00e9g\u00e8rement humide, jamais d\u00e9tremp\u00e9. L\u2019exc\u00e8s d\u2019eau prive les racines d\u2019oxyg\u00e8ne et freine le d\u00e9veloppement.<\/p>\n<h3>Lumi\u00e8re<\/h3>\n<p>Soleil le matin, protection contre la forte chaleur de l\u2019apr\u00e8s-midi. Une bonne circulation d\u2019air r\u00e9duit les risques de maladies fongiques.<\/p>\n<h3>Substrat<\/h3>\n<p>L\u00e9g\u00e8rement acide \u00e0 neutre (pH 5,5 \u00e0 6,5). Il doit \u00eatre tr\u00e8s drainant et rester bien a\u00e9r\u00e9.<\/p>\n<h3>Fertilisation<\/h3>\n<p>Le niveau d\u2019azote suit la phase de d\u00e9veloppement\u00a0:<\/p>\n<ul>\n<li>beaucoup d\u2019azote pendant le d\u00e9veloppement du tronc<\/li>\n<li>des apports mod\u00e9r\u00e9s pendant la formation des branches<\/li>\n<li>des apports ma\u00eetris\u00e9s pendant l\u2019affinage<\/li>\n<\/ul>\n<p>L\u2019engrais commande le comportement des entre-n\u0153uds.<\/p>\n<h2>Les styles qui conviennent \u00e0 sa structure<\/h2>\n<p>L\u2019Acer palmatum s\u2019adapte bien aux styles suivants\u00a0:<\/p>\n<ul>\n<li>moyogi (droit informel)<\/li>\n<li>shakan (pench\u00e9)<\/li>\n<li>kengai (cascade)<\/li>\n<\/ul>\n<p>Chaque style demande cependant une strat\u00e9gie diff\u00e9rente de contr\u00f4le de la vigueur. Le style droit formel (chokkan) exige une gestion plus stricte des entre-n\u0153uds. La cascade demande une forte r\u00e9gulation de l\u2019\u00e9nergie pour \u00e9viter que le haut ne domine.<\/p>\n<p>Le choix du style doit tenir compte du comportement de la structure, et pas seulement d\u2019une pr\u00e9f\u00e9rence esth\u00e9tique.<\/p>\n<h2>Les cultivars en un coup d\u2019\u0153il<\/h2>\n<p>Le tableau ci-dessous r\u00e9sume les principales donn\u00e9es de croissance des cultivars d\u2019Acer palmatum disponibles aujourd\u2019hui chez Treevaset. Pour une description d\u00e9taill\u00e9e, voyez nos <a href=\"https:\/\/treevaset.com\/fr\/acer-palmatum-cultivars\/\">cultivars d\u2019Acer palmatum<\/a>.<\/p>\n<div class=\"tv-cmp\">\n<table>\n<tr>\n<th>Cultivar<\/th>\n<th>Taille des feuilles<\/th>\n<th>Entre-n\u0153uds<\/th>\n<th>Port<\/th>\n<th>Couleur de printemps<\/th>\n<th>\u00c9corce<\/th>\n<th>Hauteur adulte<\/th>\n<\/tr>\n<tr>\n<td>\u2018Orihime\u2019<\/td>\n<td>Tr\u00e8s petite<\/td>\n<td>Courts<\/td>\n<td>Nain, compact<\/td>\n<td>Vert clair, bords bronze<\/td>\n<td>Lisse<\/td>\n<td>1-2\u00a0m<\/td>\n<\/tr>\n<tr>\n<td>\u2018Kotohime\u2019<\/td>\n<td>Petite<\/td>\n<td>Tr\u00e8s courts<\/td>\n<td>Nain, compact<\/td>\n<td>Vert, bords rose-rouge<\/td>\n<td>Lisse<\/td>\n<td>1-2\u00a0m<\/td>\n<\/tr>\n<tr>\n<td>\u2018Sei Hime\u2019<\/td>\n<td>Petite<\/td>\n<td>Courts<\/td>\n<td>Nain, compact<\/td>\n<td>Vert-jaune<\/td>\n<td>Lisse<\/td>\n<td>1-2\u00a0m<\/td>\n<\/tr>\n<tr>\n<td>\u2018Seigen\u2019<\/td>\n<td>Moyenne<\/td>\n<td>Moyens<\/td>\n<td>Semi-nain, \u00e9rig\u00e9<\/td>\n<td>Rouge pourpre<\/td>\n<td>Lisse<\/td>\n<td>1-2\u00a0m<\/td>\n<\/tr>\n<tr>\n<td>\u2018Beni Chidori\u2019<\/td>\n<td>Moyenne<\/td>\n<td>Moyens<\/td>\n<td>Semi-nain, \u00e9rig\u00e9<\/td>\n<td>Rose \u00e0 orange<\/td>\n<td>Lisse<\/td>\n<td>2-4\u00a0m<\/td>\n<\/tr>\n<tr>\n<td>\u2018Beni Tsukasa\u2019<\/td>\n<td>Moyenne<\/td>\n<td>Moyens<\/td>\n<td>Semi-nain, \u00e9rig\u00e9<\/td>\n<td>Rouge clair, tons roses<\/td>\n<td>Lisse<\/td>\n<td>2-4\u00a0m<\/td>\n<\/tr>\n<tr>\n<td>\u2018Katsura\u2019<\/td>\n<td>Moyenne<\/td>\n<td>Moyens<\/td>\n<td>\u00c9rig\u00e9<\/td>\n<td>Orange \u00e0 jaune<\/td>\n<td>Lisse<\/td>\n<td>1-2\u00a0m<\/td>\n<\/tr>\n<tr>\n<td>\u2018Ukon\u2019<\/td>\n<td>Moyenne<\/td>\n<td>Moyens<\/td>\n<td>\u00c9rig\u00e9, croissance rapide<\/td>\n<td>Vert \u00e9meraude, touches jaunes<\/td>\n<td>Lisse<\/td>\n<td>2-4\u00a0m<\/td>\n<\/tr>\n<tr>\n<td>\u2018Deshojo\u2019<\/td>\n<td>Grande<\/td>\n<td>Longs<\/td>\n<td>\u00c9rig\u00e9, vigoureux<\/td>\n<td>Rouge profond<\/td>\n<td>Lisse<\/td>\n<td>2-4\u00a0m<\/td>\n<\/tr>\n<tr>\n<td>\u2018Allen\u2019s Gold\u2019<\/td>\n<td>Grande<\/td>\n<td>Longs<\/td>\n<td>\u00c9rig\u00e9, vigoureux<\/td>\n<td>Dor\u00e9-chartreuse, bords roses<\/td>\n<td>Li\u00e9geuse<\/td>\n<td>3-5\u00a0m<\/td>\n<\/tr>\n<tr>\n<td>\u2018Arakawa\u2019<\/td>\n<td>Grande<\/td>\n<td>Longs<\/td>\n<td>\u00c9rig\u00e9, vigoureux<\/td>\n<td>Vert clair, bords rouges<\/td>\n<td>Li\u00e9geuse, la plus marqu\u00e9e<\/td>\n<td>3-5\u00a0m<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<p>Bien conna\u00eetre ses objectifs de d\u00e9veloppement avant de choisir un arbre de d\u00e9part \u00e9vite des compromis de structure plus tard.<\/p>\n<h2>Conclusion<\/h2>\n<p>L\u2019Acer palmatum reste une esp\u00e8ce de r\u00e9f\u00e9rence pour la structure en bonsa\u00ef. Son adaptabilit\u00e9, sa vigueur mod\u00e9r\u00e9e et la diversit\u00e9 de ses cultivars se pr\u00eatent \u00e0 un d\u00e9veloppement par \u00e9tapes, conduit avec une vision \u00e0 long terme.<\/p>\n<p>L\u2019objectif n\u2019est pas l\u2019effet visuel imm\u00e9diat. C\u2019est la construction progressive de la structure.<\/p>\n<p>Si vous cherchez des arbres de d\u00e9part \u00e0 d\u00e9velopper, parcourez nos jeunes pr\u00e9-bonsa\u00efs d\u2019Acer palmatum, choisis pour leur potentiel de formation sur le long terme.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Guide technique du d\u00e9veloppement de l\u2019Acer palmatum en bonsa\u00ef\u00a0: comportement de croissance, entre-n\u0153uds, bourgeonnement arri\u00e8re et phases de formation des jeunes pr\u00e9-bonsa\u00efs.<\/p>\n","protected":false},"author":44,"featured_media":17072,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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