{"id":1992,"date":"2026-11-10T07:00:00","date_gmt":"2026-11-10T06:00:00","guid":{"rendered":"http:\/\/192.168.60.121\/?p=1992"},"modified":"2026-11-10T13:09:26","modified_gmt":"2026-11-10T12:09:26","slug":"growing-broccoli-in-pots","status":"publish","type":"post","link":"https:\/\/ortoinbalcone.com\/en\/growing-broccoli-in-pots\/","title":{"rendered":"Broccoli in Pots: Sowing and Harvest in 5 Months"},"content":{"rendered":"<p>Broccoli in pots is the final exam of pot growing: <strong>long cycle (5 months), hunger for space and nitrogen, and a head that has to be &#8220;steered&#8221;<\/strong>. But whoever brings it home also brings home the side heads that keep being born for weeks.<\/p>\n<p>No miracles: you need a big pot (25\u201330 L), sowing in March\u2013April, and consistency with feeding. In return, from October to November, your balcony produces broccoli that in the shop cost three times as much.<\/p>\n<p>If you already know brassicas, also look at the <a href=\"\/en\/piante\/oib-plant-020-kale\/\">curly kale<\/a> profile: same basic rules, different varieties and harvest.<\/p>\n<h2>The right varieties for the pot<\/h2>\n<p>The &#8220;garden&#8221; big-head broccoli is domineering in a pot. For the balcony you need varieties that are <strong>early, with a compact, medium-small head<\/strong>:<\/p>\n<ul>\n<li><strong>Winter broccoli<\/strong> (like &#8220;winter calabrese&#8221;): sown in March\u2013April, head in October\u2013November. The most reliable.<\/li>\n<li><strong>Sprouting broccoli \/ green sprouting<\/strong>: it does not make &#8220;the&#8221; single head but continuous side heads on top \u2014 forgiving, long harvest, perfect for whoever cannot stop.<\/li>\n<li><strong>Dwarf\/early varieties from 60\u201380 days<\/strong>: they exist, but in pots they stay weak; better a healthy winter one than a forced dwarf.<\/li>\n<\/ul>\n<p>The seeds are cheap and last years: <a href=\"https:\/\/www.amazon.it\/dp\/B07NSZWZYD?tag=ortoinbalcone09-21\" rel=\"sponsored nofollow noopener\" target=\"_blank\">this packet of 300 broccoli seeds<\/a> is enough for 2\u20133 pots.<\/p>\n<h2>When to sow<\/h2>\n<table>\n<thead>\n<tr>\n<th>Sowing<\/th>\n<th>Transplant<\/th>\n<th>Head<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>March (pot\/nursery)<\/td>\n<td>May<\/td>\n<td>October\u2013November<\/td>\n<\/tr>\n<tr>\n<td>April (pot\/nursery)<\/td>\n<td>June<\/td>\n<td>November\u2013December (with protection)<\/td>\n<\/tr>\n<tr>\n<td>August\u2013September<\/td>\n<td>October<\/td>\n<td>January\u2013March (South only, with fleece)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>The right window in the centre\u2013north: sow in March, transplant in May, harvest in October.<\/strong> Do not go earlier: a broccoli transplanted in June bolts before making the head.<\/p>\n<h2>Pot and substrate for broccoli in pots: no compromises here<\/h2>\n<ul>\n<li><strong>Minimum volume: 25 L<\/strong>. For 2 plants, 40 L. Broccoli is the most demanding head vegetable in pots (see the volume table in <a href=\"\/en\/best-pots-for-vegetables\/\">The Best Pots for Vegetables<\/a>).<\/li>\n<li><strong>Depth: 30 cm<\/strong>, the taproot is serious.<\/li>\n<li><strong>Fertile substrate<\/strong>: 60% potting soil, 25% mature compost (or 20% potting soil + 40% compost, if you have it), 15% perlite. Broccoli &#8220;eats&#8221; the substrate: the poor version is fine for lettuce, not for it.<\/li>\n<\/ul>\n<h2>Sowing and transplanting broccoli in pots, step by step<\/h2>\n<ol>\n<li><strong>Seeds in 10 cm pots<\/strong> (or a tray): 2\u20133 seeds per pot, at 1 cm depth, 18\u201320 \u00b0C.<\/li>\n<li><strong>Thin to 1 plant<\/strong> when it has 2\u20133 true leaves.<\/li>\n<li><strong>Growth in the single pot<\/strong> for 5\u20136 weeks: water, and at 3 weeks a light feeding.<\/li>\n<li><strong>Transplant to the big pot at 4\u20135 true leaves<\/strong> (15\u201320 cm): deep hole, firm well, generous watering.<\/li>\n<li><strong>One plant per pot<\/strong>: a broccoli in a shared pot is a weak broccoli.<\/li>\n<\/ol>\n<p><figure><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/10\/07-inline.webp\" alt=\"Hands breaking a broccoli side shoot off the plant\" loading=\"lazy\" \/><\/figure>\n<\/p>\n<h2>The key point of broccoli in pots: &#8220;steering&#8221; the head<\/h2>\n<p>Here is the trick nobody tells you:<\/p>\n<ul>\n<li><strong>Keep the top exposed to the sun<\/strong> until the head starts forming (you see it as a &#8220;fist&#8221; closing).<\/li>\n<li><strong>Then, if the sun is too strong<\/strong>, shade the forming head for 2\u20133 hours a day with a white fleece or paper: the head stays compact and white-green, it does not crumble.<\/li>\n<li><strong>The cold is your ally<\/strong>: below 10\u201312 \u00b0C the head closes and hardens. That is why the October broccoli is better than the August one.<\/li>\n<\/ul>\n<h2>Watering and feeding for broccoli in pots<\/h2>\n<ul>\n<li><strong>Water<\/strong>: a lot. Broccoli is 90% water and it does not forgive: in a big pot, twice a day in July, once a day in October. Substrate always moist, never sodden.<\/li>\n<li><strong>Feeding<\/strong>: it is the vegetable that most demands fertiliser in pots.<\/li>\n<li>One dose of slow-release at planting.<\/li>\n<li><strong>Then every 2 weeks<\/strong> a liquid (or granular) dose until the head closes.<\/li>\n<li>Deficiency signal: low yellow leaves + head forming small. The dose table is in <a href=\"\/en\/feeding-plants-in-pots\/\">Feeding plants in pots<\/a>.<\/li>\n<\/ul>\n<h2>Harvest of broccoli in pots: the head and the side heads<\/h2>\n<ol>\n<li><strong>Main head<\/strong>: when it is compact, 15\u201320 cm, and the buds are still closed. Cut with a clean cut <strong>5\u20136 leaves below the head<\/strong>.<\/li>\n<li><strong>Side heads<\/strong>: in the following 3\u20136 weeks, from the base and the stems, secondary heads appear. Harvest them as soon as compact (5\u20138 cm): they are the tastiest.<\/li>\n<li><strong>End of cycle<\/strong>: when the side heads stop forming (or the plant bolts), it is removed. Total: 1 head + 8\u201315 side heads from one pot.<\/li>\n<\/ol>\n<h2>Mistakes to avoid<\/h2>\n<ul>\n<li><strong>Pot of 10\u201315 L<\/strong>: tiny or no head.<\/li>\n<li><strong>Transplant in June<\/strong>: certain bolting.<\/li>\n<li><strong>Forgetting the feedings<\/strong>: &#8220;open head&#8221; (scattered buds) = nitrogen deficiency.<\/li>\n<li><strong>Harvesting late<\/strong>: crumbled head and worms (the white &#8220;plume&#8221; inside the buds).<\/li>\n<\/ul>\n<p>The autumn sowing of brassicas for the winter harvest is in What to Plant in November.<\/p>\n<h2>Sources<\/h2>\n<ul>\n<li>CREA \u2014 Broccoli (Brassica oleracea var. italica): growing cycle, varieties and harvest (technical sheets)<\/li>\n<li>Orto da Coltivare \u2014 Broccoli: sowing and harvest guide in pots and in the ground<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Broccoli in pots is the final exam of pot growing: long cycle (5 months), hunger for space and nitrogen, and a head that has to be &#8220;steered&#8221;. But whoever brings it home also brings home the side heads that keep being born for weeks. No miracles: you need a big pot (25\u201330 L), sowing in [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1754,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_locale":"en_GB","_original_post":"https:\/\/ortoinbalcone.com\/?p=1855","oib_translation_group_id":"","oib_affiliate_link_limit":0,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1992","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide","en-GB"],"_links":{"self":[{"href":"https:\/\/ortoinbalcone.com\/wp-json\/wp\/v2\/posts\/1992","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ortoinbalcone.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ortoinbalcone.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ortoinbalcone.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ortoinbalcone.com\/wp-json\/wp\/v2\/comments?post=1992"}],"version-history":[{"count":2,"href":"https:\/\/ortoinbalcone.com\/wp-json\/wp\/v2\/posts\/1992\/revisions"}],"predecessor-version":[{"id":3647,"href":"https:\/\/ortoinbalcone.com\/wp-json\/wp\/v2\/posts\/1992\/revisions\/3647"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ortoinbalcone.com\/wp-json\/wp\/v2\/media\/1754"}],"wp:attachment":[{"href":"https:\/\/ortoinbalcone.com\/wp-json\/wp\/v2\/media?parent=1992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ortoinbalcone.com\/wp-json\/wp\/v2\/categories?post=1992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ortoinbalcone.com\/wp-json\/wp\/v2\/tags?post=1992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}