{"id":6165,"date":"2026-11-02T11:52:35","date_gmt":"2026-11-02T08:52:35","guid":{"rendered":"https:\/\/wpcalc.com\/fr\/vie-quotidienne\/calculateur-semences-gazon\/"},"modified":"2026-11-02T11:52:35","modified_gmt":"2026-11-02T08:52:35","slug":"calculateur-semences-gazon","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/fr\/vie-quotidienne\/calculateur-semences-gazon\/","title":{"rendered":"Calculateur de semences de gazon"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">Estimez la quantit\u00e9 de semences, le nombre de sacs et le co\u00fbt pour votre pelouse<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"6165\" data-favorite-title=\"Semences de gazon\" data-favorite-url=\"https:\/\/wpcalc.com\/fr\/vie-quotidienne\/calculateur-semences-gazon\/\" data-favorite-excerpt=\"Estimez la quantit\u00e9 de semences n\u00e9cessaire pour votre pelouse. Saisissez ses dimensions, le type de gazon et la nature du projet pour conna\u00eetre le poids de semences, le nombre de sacs et le co\u00fbt total.\" aria-label=\"Ajouter aux favoris\" data-favorite-icon=\"icon icon-eco-home\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/fr\/vie-quotidienne\/calculateur-semences-gazon\/\" method=\"POST\" class=\"calculator\" id=\"calculator-6165\" data-post=\"6165\"><fieldset class=\"fieldset-input is-2\"><legend class=\"sr-only\">Champs de saisie<\/legend><div class=\"is-single field\" id=\"input-1\"><span class=\"font-semibold\">Surface de la pelouse<\/span><\/div><div class=\"field is-single\" id=\"input-2\"><label for=\"field-2\">Forme de la pelouse<\/label><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"forme_de_la_pelouse\"><option value=\"rect\" selected>Rectangle (longueur \u00d7 largeur)<\/option><option value=\"circle\">Cercle (diam\u00e8tre)<\/option><option value=\"total\">Surface totale (connue)<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-3\"><label for=\"field-3\">Longueur<\/label><div class=\"field-group\"><input type=\"text\" name=\"longueur\" id=\"field-3\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"40\"\/><div class=\"grid grid-cols-1\"><select id=\"field-4\" name=\"unit\" aria-label=\"Unit\u00e9\"><option value=\"ft\" selected>ft<\/option><option value=\"m\">m<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><\/div><div class=\"field\" id=\"input-4\"><label for=\"field-5\">Largeur<\/label><div class=\"field-group\"><input type=\"text\" name=\"largeur\" id=\"field-5\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"30\"\/><div class=\"grid grid-cols-1\"><select id=\"field-6\" name=\"unit\" aria-label=\"Unit\u00e9\"><option value=\"ft\" selected>ft<\/option><option value=\"m\">m<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><\/div><div class=\"field\" id=\"input-5\" hidden><label for=\"field-7\">Diam\u00e8tre<\/label><div class=\"field-group\"><input type=\"text\" name=\"diamtre\" id=\"field-7\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"20\"\/><div class=\"grid grid-cols-1\"><select id=\"field-8\" name=\"unit\" aria-label=\"Unit\u00e9\"><option value=\"ft\" selected>ft<\/option><option value=\"m\">m<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><\/div><div class=\"field\" id=\"input-6\" hidden><label for=\"field-9\">Surface totale<\/label><div class=\"field-group\"><input type=\"text\" name=\"surface_totale\" id=\"field-9\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"1200\"\/><div class=\"grid grid-cols-1\"><select id=\"field-10\" name=\"unit_de_surface\" aria-label=\"Unit\u00e9 de surface\"><option value=\"sqft\" selected>ft\u00b2<\/option><option value=\"sqm\">m\u00b2<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><\/div><div class=\"is-single field\" id=\"input-7\"><span class=\"font-semibold\">Type de gazon et projet<\/span><\/div><div class=\"field is-single\" id=\"input-8\"><label for=\"field-12\">Type de gazon<\/label><div class=\"grid grid-cols-1\"><select id=\"field-12\" name=\"type_de_gazon\"><option value=\"kbg\" selected>P\u00e2turin des pr\u00e9s (Kentucky) \u2014 2\u20133 \/ 1\u20131,5 lb pour 1 000 ft\u00b2<\/option><option value=\"tallfescue\">F\u00e9tuque \u00e9lev\u00e9e \u2014 6\u20138 \/ 3\u20134 lb pour 1 000 ft\u00b2<\/option><option value=\"perennialrye\">Ray-grass anglais \u2014 5\u20137 \/ 3\u20134 lb pour 1 000 ft\u00b2<\/option><option value=\"finefescue\">F\u00e9tuque fine \u2014 4\u20135 \/ 2\u20133 lb pour 1 000 ft\u00b2<\/option><option value=\"bermuda\">Chiendent pied-de-poule (graines d\u00e9cortiqu\u00e9es) \u2014 1\u20132 \/ 1 lb pour 1 000 ft\u00b2<\/option><option value=\"zoysia\">Zoysia \u2014 1\u20132 \/ 1 lb pour 1 000 ft\u00b2<\/option><option value=\"custom\">Personnalis\u00e9 \u2014 d\u00e9finissez votre dose<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-9\" hidden><label for=\"field-13\">Dose de semis personnalis\u00e9e<\/label><input type=\"text\" name=\"dose_de_semis_personnalise\" id=\"field-13\" aria-describedby=\"calc-unit-13 calc-info-13\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"3\"\/><div class=\"unit\" id=\"calc-unit-13\">lb\/1 000 ft\u00b2<\/div><small id=\"calc-info-13\">Quantit\u00e9 de semences en livres pour 1 000 ft\u00b2, selon le type de projet choisi ci-dessous.<\/small><\/div><div class=\"field is-single\" id=\"input-10\" hidden><label for=\"field-14\">Saison du gazon personnalis\u00e9<\/label><div class=\"grid grid-cols-1\"><select id=\"field-14\" name=\"saison_du_gazon_personnalis\"><option value=\"cool\" selected>Gazon de saison fra\u00eeche<\/option><option value=\"warm\">Gazon de saison chaude<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field is-single\" id=\"input-11\"><label for=\"field-15\">Projet<\/label><div class=\"grid grid-cols-1\"><select id=\"field-15\" name=\"projet\"><option value=\"new\" selected>Nouvelle pelouse (sur sol nu)<\/option><option value=\"over\">Regarnir une pelouse existante<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-12\"><label for=\"field-16\">Contenance du sac<\/label><div class=\"field-group\"><input type=\"text\" name=\"contenance_du_sac\" id=\"field-16\" aria-describedby=\"calc-info-16\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"5\"\/><div class=\"grid grid-cols-1\"><select id=\"field-17\" name=\"unit\" aria-label=\"Unit\u00e9\"><option value=\"lb\" selected>lb<\/option><option value=\"kg\">kg<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-16\">Les semences sont g\u00e9n\u00e9ralement vendues en sacs de 1, 3, 5, 10, 20, 25 et 50 lb.<\/small><\/div><div class=\"field\" id=\"input-13\"><label for=\"field-18\">Prix par sac<\/label><input type=\"text\" name=\"prix_par_sac\" id=\"field-18\" aria-describedby=\"calc-unit-18 calc-info-18\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"30\"\/><div class=\"unit\" id=\"calc-unit-18\">$<\/div><small id=\"calc-info-18\">Facultatif \u2014 laissez ce champ vide pour ne pas estimer le co\u00fbt.<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Recalculer\" id=\"calculate-button\" data-post=\"6165\">Calculer<\/button><button type=\"reset\">R\u00e9initialiser<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Calculer automatiquement<\/label><small>Si activ\u00e9, le r\u00e9sultat se met \u00e0 jour automatiquement d\u00e8s que vous modifiez une valeur.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Estimation des semences de gazon<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Surface de la pelouse<\/span><\/span><span class=\"field-value\" id=\"result-1\" data-unit=\"ft\u00b2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copier le r\u00e9sultat\" aria-label=\"Copier le r\u00e9sultat\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>Surface de la pelouse<\/span><\/span><span class=\"field-value\" id=\"result-2\" data-unit=\"m\u00b2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copier le r\u00e9sultat\" aria-label=\"Copier le r\u00e9sultat\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-3\"><span class=\"field-title\"><span>Dose de semis utilis\u00e9e<\/span><\/span><span class=\"field-value\" id=\"result-3\" data-unit=\"lb\/1 000 ft\u00b2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copier le r\u00e9sultat\" aria-label=\"Copier le r\u00e9sultat\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-4\"><span class=\"field-title\"><span>Quantit\u00e9 de semences n\u00e9cessaire<\/span><\/span><span class=\"field-value\" id=\"result-4\" data-unit=\"lb\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copier le r\u00e9sultat\" aria-label=\"Copier le r\u00e9sultat\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-5\"><span class=\"field-title\"><span>Quantit\u00e9 de semences n\u00e9cessaire<\/span><\/span><span class=\"field-value\" id=\"result-5\" data-unit=\"kg\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copier le r\u00e9sultat\" aria-label=\"Copier le r\u00e9sultat\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-6\"><span class=\"field-title\"><span>Sacs \u00e0 acheter<\/span><\/span><span class=\"field-value\" id=\"result-6\" data-unit=\"sacs\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copier le r\u00e9sultat\" aria-label=\"Copier le r\u00e9sultat\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-7\"><span class=\"field-title\"><span>Co\u00fbt estim\u00e9<\/span><\/span><span class=\"field-value\" id=\"result-7\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copier le r\u00e9sultat\" aria-label=\"Copier le r\u00e9sultat\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-8\"><span class=\"field-title\"><span>Quand semer<\/span><\/span><span class=\"field-value\" id=\"result-8\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copier le r\u00e9sultat\" aria-label=\"Copier le r\u00e9sultat\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-9\"><span class=\"field-title\"><span>D\u00e9tails du calcul<\/span><\/span><span class=\"field-value\" id=\"result-9\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copier le r\u00e9sultat\" aria-label=\"Copier le r\u00e9sultat\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Copier le lien vers ce calcul<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Laisser un commentaire<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"6165\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">Que pensez-vous de ce r\u00e9sultat\u00a0?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">J\u2019aime <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">Utile <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Confus <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">D\u00e9\u00e7u <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Inexact <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>Formule de calcul des semences de gazon<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">Formule<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[ A = L \\times W \\qquad A = \\frac{\\pi d^{2}}{4} \\qquad \\text{Semences (lb)} = \\frac{A}{1000} \\times r \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Avec\u00a0:<\/strong><\/p>\n<ul>\n<li>\\(A\\) \u2014 la surface de la pelouse en ft\u00b2<\/li>\n<li>\\(L\\), \\(W\\) \u2014 la longueur et la largeur d\u2019une pelouse rectangulaire (converties en pieds)<\/li>\n<li>\\(d\\) \u2014 le diam\u00e8tre d\u2019une pelouse circulaire (converti en pieds)<\/li>\n<li>\\(r\\) \u2014 la dose de semis en lb pour 1\u00a0000 ft\u00b2, qui d\u00e9pend du type de gazon et du projet\u00a0: cr\u00e9er une pelouse ou regarnir une pelouse existante<\/li>\n<\/ul>\n<p>Le calculateur d\u00e9termine d\u2019abord la surface de la pelouse selon la forme choisie. Il convertit les mesures saisies en m\u00e8tres en pieds (1 m = 3,28084 ft) afin d\u2019appliquer une m\u00eame dose de semis pour 1\u00a0000 ft\u00b2. Il adapte ensuite le poids de semences \u00e0 la surface de votre pelouse, arrondit le nombre de sacs \u00e0 l\u2019entier sup\u00e9rieur et le multiplie par le prix d\u2019un sac.<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-2\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>Semences de gazon : exemple de calcul<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Exemple\u00a0:<\/strong> une nouvelle pelouse rectangulaire de 40 ft de long sur 30 ft de large, sem\u00e9e de p\u00e2turin des pr\u00e9s. Les semences sont vendues en sacs de 5 lb \u00e0 30 $ le sac.<\/p>\n<p>\\[ A = 40 \\times 30 = 1200\\ \\text{ft}^2 \\]<\/p>\n<p>Pour une nouvelle pelouse de p\u00e2turin des pr\u00e9s, le calculateur retient le milieu de la fourchette habituelle de 2 \u00e0 3 lb pour 1\u00a0000 ft\u00b2\u00a0; on a donc \\(r = 2.5\\)\u00a0:<\/p>\n<p>\\[ \\text{Semences} = \\frac{1200}{1000} \\times 2.5 = 3\\ \\text{lb} \\]<\/p>\n<p>Nombre de sacs\u00a0: \\(3 \\div 5 = 0.6\\), soit 1 sac apr\u00e8s arrondissement \u00e0 l\u2019entier sup\u00e9rieur. Co\u00fbt\u00a0: \\(1 \\times 30 =\\) 30 $.<\/p>\n<p><strong>R\u00e9sultat\u00a0:<\/strong> une pelouse de 1\u00a0200 ft\u00b2 (111,5 m\u00b2) n\u00e9cessite environ 3 lb (1,36 kg) de semences\u00a0: achetez un sac de 5 lb pour environ 30 $.<\/p>\n<p>\n\r\n<\/section>\n<h2>Comment utiliser le calculateur<\/h2>\n<ol>\n<li>Choisissez la <strong>Forme de la pelouse<\/strong>\u00a0: rectangle, cercle, ou saisissez directement la <strong>Surface totale<\/strong> si vous la connaissez. Seuls les champs correspondant \u00e0 votre choix s\u2019affichent.<\/li>\n<li>Saisissez les dimensions dans les champs <strong>Longueur<\/strong> et <strong>Largeur<\/strong> (ou <strong>Diam\u00e8tre<\/strong>, ou <strong>Surface totale<\/strong>), puis choisissez l\u2019unit\u00e9, ft ou m.<\/li>\n<li>S\u00e9lectionnez le <strong>Type de gazon<\/strong>. Ne choisissez <em>Personnalis\u00e9<\/em> que si votre sac de semences indique une dose absente de la liste\u00a0; renseignez alors la <strong>Dose de semis personnalis\u00e9e<\/strong> et la saison de votre gazon.<\/li>\n<li>Choisissez le <strong>Projet<\/strong>\u00a0: cr\u00e9er une pelouse sur un sol nu ou regarnir une pelouse existante. Pour regarnir, il faut environ deux fois moins de semences que pour cr\u00e9er une pelouse.<\/li>\n<li>Indiquez le <strong>Poids du sac<\/strong> en lb ou en kg et, si vous le souhaitez, le <strong>Prix par sac<\/strong>. Laissez le prix vide si seule la quantit\u00e9 de semences vous int\u00e9resse.<\/li>\n<\/ol>\n<h2>Comprendre les r\u00e9sultats<\/h2>\n<p>La <strong>Surface de la pelouse<\/strong> est indiqu\u00e9e en ft\u00b2 et en m\u00b2 pour que vous puissiez la v\u00e9rifier \u00e0 partir de vos mesures. La <strong>Dose de semis utilis\u00e9e<\/strong> correspond au milieu de la fourchette habituelle pour le type de gazon et le projet choisis\u00a0: c\u2019est un point de d\u00e9part, pas une r\u00e8gle absolue.<\/p>\n<p>La <strong>Quantit\u00e9 de semences n\u00e9cessaire<\/strong> est le poids total de semences \u00e0 r\u00e9partir en une fois sur toute la pelouse. Une r\u00e9partition uniforme compte autant que la quantit\u00e9\u00a0: trop peu de semences laissent des zones clairsem\u00e9es, tandis qu\u2019un exc\u00e8s met les jeunes plants en concurrence et entra\u00eene leur d\u00e9p\u00e9rissement, pour une d\u00e9pense inutile.<\/p>\n<p>Le <strong>Nombre de sacs \u00e0 acheter<\/strong> est toujours arrondi \u00e0 l\u2019entier sup\u00e9rieur, car les magasins ne vendent pas de fractions de sac. Le <strong>Co\u00fbt estim\u00e9<\/strong> ne couvre que les semences\u00a0: il n\u2019inclut ni la pr\u00e9paration du sol, ni l\u2019engrais de d\u00e9marrage, ni le paillage, ni la livraison.<\/p>\n<p>L\u2019encadr\u00e9 <strong>Quand semer<\/strong> donne des conseils sur la p\u00e9riode de semis des gazons de saison fra\u00eeche (p\u00e2turin des pr\u00e9s, f\u00e9tuques, ray-grass\u00a0: d\u00e9but de l\u2019automne de pr\u00e9f\u00e9rence) et des gazons de saison chaude (chiendent pied-de-poule, zoysia\u00a0: de la fin du printemps au d\u00e9but de l\u2019\u00e9t\u00e9 de pr\u00e9f\u00e9rence). La p\u00e9riode choisie influe sur la r\u00e9ussite plus que presque tout autre facteur\u00a0: les jeunes plants ont besoin d\u2019une temp\u00e9rature du sol adapt\u00e9e pour germer, puis d\u2019assez de temps pour s\u2019\u00e9tablir avant d\u2019affronter des conditions m\u00e9t\u00e9orologiques difficiles.<\/p>\n<h2>Doses de semis selon le type de gazon<\/h2>\n<table>\n<thead>\n<tr>\n<th>Type de gazon<\/th>\n<th>Nouvelle pelouse (lb\/1\u00a0000 ft\u00b2)<\/th>\n<th>Regarnissage (lb\/1\u00a0000 ft\u00b2)<\/th>\n<th>Saison<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>P\u00e2turin des pr\u00e9s<\/td>\n<td>2\u20133<\/td>\n<td>1\u20131,5<\/td>\n<td>Fra\u00eeche<\/td>\n<\/tr>\n<tr>\n<td>F\u00e9tuque \u00e9lev\u00e9e<\/td>\n<td>6\u20138<\/td>\n<td>3\u20134<\/td>\n<td>Fra\u00eeche<\/td>\n<\/tr>\n<tr>\n<td>Ray-grass anglais<\/td>\n<td>5\u20137<\/td>\n<td>3\u20134<\/td>\n<td>Fra\u00eeche<\/td>\n<\/tr>\n<tr>\n<td>F\u00e9tuque fine<\/td>\n<td>4\u20135<\/td>\n<td>2\u20133<\/td>\n<td>Fra\u00eeche<\/td>\n<\/tr>\n<tr>\n<td>Chiendent pied-de-poule (d\u00e9cortiqu\u00e9)<\/td>\n<td>1\u20132<\/td>\n<td>1<\/td>\n<td>Chaude<\/td>\n<\/tr>\n<tr>\n<td>Zoysia<\/td>\n<td>1\u20132<\/td>\n<td>1<\/td>\n<td>Chaude<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Retenez le bas de la fourchette pour un sol bien pr\u00e9par\u00e9 et arros\u00e9, et le haut pour les zones tr\u00e8s pi\u00e9tin\u00e9es, les pentes sujettes \u00e0 l\u2019\u00e9rosion ou une pelouse existante peu dense \u00e0 \u00e9paissir.<\/p>\n<h2>Hypoth\u00e8ses, limites et conseils<\/h2>\n<ul>\n<li><strong>Suivez en priorit\u00e9 les indications du sac.<\/strong> Si l\u2019\u00e9tiquette de votre produit pr\u00e9cise une dose, utilisez-la\u00a0: la qualit\u00e9 des semences, notamment les taux de germination et de puret\u00e9, varie selon les marques. Les semences enrob\u00e9es exigent aussi une dose plus \u00e9lev\u00e9e en poids, car une partie de ce poids vient de l\u2019enrobage et non des graines.<\/li>\n<li><strong>Pr\u00e9voyez une petite marge.<\/strong> Beaucoup de personnes ach\u00e8tent un sac suppl\u00e9mentaire pour reprendre les zones d\u00e9garnies qui apparaissent quelques semaines apr\u00e8s la germination. Comme le nombre de sacs est d\u00e9j\u00e0 arrondi \u00e0 l\u2019entier sup\u00e9rieur, cette marge ne co\u00fbte souvent rien de plus.<\/li>\n<li><strong>Le calcul suppose un bon contact entre les semences et la terre.<\/strong> Passez l\u00e9g\u00e8rement le r\u00e2teau avant et apr\u00e8s le semis, puis gardez les 2,5 premiers centim\u00e8tres de terre constamment humides jusqu\u2019\u00e0 la germination. Si vous partez d\u2019un terrain nu, pr\u00e9parez d\u2019abord le sol\u00a0: le <a href=\"https:\/\/wpcalc.com\/en\/life\/topsoil-calculator\/\">calculateur de terre v\u00e9g\u00e9tale<\/a> vous aide \u00e0 commander la bonne quantit\u00e9, et le <a href=\"https:\/\/wpcalc.com\/en\/life\/square-footage-calculator\/\">calculateur de surface<\/a> permet de v\u00e9rifier la superficie des terrains de forme irr\u00e9guli\u00e8re.<\/li>\n<li><strong>Semences ou gazon en rouleaux\u00a0?<\/strong> Semer co\u00fbte moins cher, mais il faut plusieurs semaines pour que le gazon s\u2019\u00e9tablisse. Si vous voulez une pelouse imm\u00e9diatement, le <a href=\"https:\/\/wpcalc.com\/en\/life\/sod-calculator\/\">calculateur de gazon en rouleaux<\/a> estime le nombre de rouleaux et leur co\u00fbt pour la m\u00eame surface.<\/li>\n<li><strong>Il s\u2019agit d\u2019estimations.<\/strong> La quantit\u00e9 r\u00e9ellement n\u00e9cessaire varie selon la m\u00e9t\u00e9o, l\u2019arrosage, l\u2019\u00e9tat du sol et la r\u00e9gularit\u00e9 de votre \u00e9pandeur. Utilisez le r\u00e9sultat pour pr\u00e9voir vos achats, sans le consid\u00e9rer comme une garantie.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Estimez la quantit\u00e9 de semences n\u00e9cessaire pour votre pelouse. Saisissez ses dimensions, le type de gazon et la nature du projet pour conna\u00eetre le poids de semences, le nombre de sacs et le co\u00fbt total.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[25],"class_list":["post-6165","post","type-post","status-publish","format-standard","hentry","category-vie-quotidienne","tag-maison"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/fr\/wp-json\/wp\/v2\/posts\/6165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/fr\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/fr\/wp-json\/wp\/v2\/comments?post=6165"}],"version-history":[{"count":0,"href":"https:\/\/wpcalc.com\/fr\/wp-json\/wp\/v2\/posts\/6165\/revisions"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/fr\/wp-json\/wp\/v2\/media?parent=6165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/fr\/wp-json\/wp\/v2\/categories?post=6165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/fr\/wp-json\/wp\/v2\/tags?post=6165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}