{"id":3064,"date":"2026-09-20T20:08:32","date_gmt":"2026-09-20T20:08:32","guid":{"rendered":"https:\/\/www.tomat-pomidor.com\/en\/?p=3064"},"modified":"2026-09-20T20:28:13","modified_gmt":"2026-09-20T20:28:13","slug":"onion-seedlings-falling-over","status":"publish","type":"post","link":"https:\/\/www.tomat-pomidor.com\/en\/onion-seedlings-falling-over\/","title":{"rendered":"Onion Seedlings Falling Over? How to Trim and Support Them"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;3064&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Share your rating&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Onion Seedlings Falling Over? How to Trim and Support Them&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">Share your rating<\/span>\n    <\/div>\n    <\/div>\n<h2 style=\"margin-top: 20px; margin-bottom: 20px; font-size: 2em;\">Growing Onion &amp; Brassica Seedlings: Trimming and Temperature Tips<\/h2>\n<div class=\"tldr-box\" style=\"background: #f4f9f4; padding: 20px; border-left: 5px solid #4CAF50; margin-bottom: 30px; border-radius: 4px;\">\n<h3>\ud83d\udccc Quick Summary: Indoor Onion &amp; Cabbage Seedlings<\/h3>\n<ul>\n<li>\ud83e\uddc5 <strong>Should you separate onion seedlings?<\/strong> No! If you lack space, let them grow tightly crowded in a single container. When transplanting outside, you can plant them in &#8220;multi-sown clumps&#8221; of 3-4 onions per hole.<\/li>\n<li>\u2702\ufe0f <strong>The &#8220;Combing&#8221; Technique:<\/strong> If your indoor onion seedlings fall over, gently comb them upright, top-dress the base with 1\/4 inch (0.5 cm) of dry soil, and trim any dry tips with scissors.<\/li>\n<li>\ud83c\udf21\ufe0f <strong>The Light\/Temp Balance:<\/strong> The warmer the room, the more intense grow lights your onions need. If it&#8217;s a cloudy day with low light, you MUST lower the room temperature to around 64\u00b0F (18\u00b0C) to prevent them from getting leggy.<\/li>\n<li>\ud83e\udd66 <strong>Brassica Timings:<\/strong> Start early broccoli and cabbage indoors in mid-March, but move them to an unheated greenhouse within a week of sprouting. They hate indoor heat!<\/li>\n<\/ul>\n<\/div>\n<h2 id=\"brassica-seedlings\" style=\"margin-top: 40px; margin-bottom: 20px; font-size: 1.5em; border-bottom: 2px solid #eaeaea; padding-bottom: 10px;\">When to Start Broccoli &amp; Onion Seedlings<\/h2>\n<div class=\"forum-post\">\n<div class=\"author-header\">\n<div class=\"forum-avatar\">Y<\/div>\n<div class=\"author-meta\">\n<div class=\"author-name\">YANGUN (Irina) <span class=\"author-stats\">\ud83c\udf31 Member (300 posts)<\/span><\/div>\n<div class=\"author-geo\">\ud83d\udccd Moscow Region, Russia (USDA Zone 4)<\/div>\n<\/div>\n<\/div>\n<div class=\"post-content\">Lyuda, please tell me, when should I sow broccoli and cauliflower for seedlings? And another question: do I need to separate and prick out onion seedlings if they are sown very densely in the container, or just leave them as they are?<\/div>\n<\/div>\n<div class=\"forum-post\">\n<div class=\"author-header\">\n<div class=\"forum-avatar\">A<\/div>\n<div class=\"author-meta\">\n<div class=\"author-name\">Aleksan9ra (Lyudmila) <span class=\"author-stats\">\u2b50 Pro Grower (15,056 posts)<\/span><\/div>\n<div class=\"author-geo\">\ud83d\udccd Moscow Region, Russia (USDA Zone 4)<\/div>\n<\/div>\n<\/div>\n<div class=\"post-content\">\n<p>Irina, for an early harvest, I sow about 5-6 broccoli plants, which is enough to eat fresh and freeze for winter. I sow them on March 17th alongside 10 early cabbage seeds. I don&#8217;t sow them in dirt right away; I sprout them using the damp paper towel roll method.<\/p>\n<p>Once the cotyledons (seed leaves) fully open, I transplant them into plug trays. But here is the catch: <strong>you cannot keep cabbage seedlings indoors after potting them up!<\/strong> You must take them out to an unheated greenhouse during the day. For me, that happens around March 25th (even if there is still snow on the ground outside).<\/p>\n<p>As for the onions: if you have plenty of space and containers, you can separate them and pot them up individually, or in small clumps of 3-4. I don&#8217;t have extra space, so however they sprout is how they stay until planting day. In April, I just move the whole intact root ball from the cup into a greenhouse bed without dividing it.<\/p>\n<\/div>\n<\/div>\n<h2 id=\"trimming-onions\" style=\"margin-top: 40px; margin-bottom: 20px; font-size: 1.5em; border-bottom: 2px solid #eaeaea; padding-bottom: 10px;\">Trimming and &#8220;Combing&#8221; Floppy Onion Seedlings<\/h2>\n<div class=\"forum-post\">\n<div class=\"author-header\">\n<div class=\"forum-avatar\">L<\/div>\n<div class=\"author-meta\">\n<div class=\"author-name\">LenaD (Lena) <span class=\"author-stats\">\ud83c\udf31 Member (461 posts)<\/span><\/div>\n<div class=\"author-geo\">\ud83d\udccd Udmurtia, Russia (USDA Zone 3)<\/div>\n<\/div>\n<\/div>\n<div class=\"post-content\">Good morning! Lyudmila, how are your onions growing? I sowed mine on March 3rd following your exact &#8220;recipe,&#8221; and it seems to me they are growing a bit too aggressively. They are sitting on a windowsill. By the way, just as you predicted, the &#8216;Candy&#8217; variety sprouted much faster and better than the &#8216;Exhibition&#8217; (Ailsa Craig) variety.<br \/>\n<a href=\"https:\/\/www.tomat-pomidor.com\/uploads\/monthly_2021_03\/20210316_092506.jpg.86d486daa5063117172183526cd578f6.jpg\"><img decoding=\"async\" src=\"https:\/\/www.tomat-pomidor.com\/uploads\/monthly_2021_03\/20210316_092506.thumb.jpg.524cf23ee62a60d5aab66341607bcdb5.jpg\" alt=\"Tall onion seedlings growing indoors\" \/><\/a><br \/>\n<a href=\"https:\/\/www.tomat-pomidor.com\/uploads\/monthly_2021_03\/20210316_092154.jpg.b3f516fbe18b77e852a3318ce7abaf51.jpg\"><img decoding=\"async\" src=\"https:\/\/www.tomat-pomidor.com\/uploads\/monthly_2021_03\/20210316_092154.thumb.jpg.14c7ab67d88fe9f190042a0a55e52895.jpg\" alt=\"Onion seedlings flopping over in a container\" \/><\/a><\/div>\n<\/div>\n<div class=\"forum-post\">\n<div class=\"author-header\">\n<div class=\"forum-avatar\">A<\/div>\n<div class=\"author-meta\">\n<div class=\"author-name\">Aleksan9ra (Lyudmila) <span class=\"author-stats\">\u2b50 Pro Grower (15,056 posts)<\/span><\/div>\n<div class=\"author-geo\">\ud83d\udccd Moscow Region, Russia (USDA Zone 4)<\/div>\n<\/div>\n<\/div>\n<div class=\"post-content\">\n<p>It is time for them to start putting on growth. You just need to remember the golden rule: <strong>the higher the room temperature, the more intense light they need.<\/strong> If you don&#8217;t have enough light right now because it&#8217;s cloudy outside, you must keep the temperature to an absolute minimum\u2014around 64\u00b0F (18\u00b0C), no higher.<\/p>\n<p>Right now, you need to &#8220;comb&#8221; your onions. Carefully lift up the ones that have flopped over and top-dress the base with a 1\/4 inch (0.5 cm) layer of dry soil to support them. Use scissors to snip off any dry, withered tips.<\/p>\n<p>Constantly monitor the moisture\u2014onion seedlings should never dry out completely. Mist them from above with a fine spray if the indoor air is dry, and you can start giving them a light liquid feeding.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Growing Onion &amp; Brassica Seedlings: Trimming and Temperature Tips \ud83d\udccc Quick Summary: Indoor Onion &amp; Cabbage Seedlings \ud83e\uddc5 Should you separate onion seedlings? No! If you lack space, let them grow tightly crowded in a single container. When transplanting outside, you can plant them in &#8220;multi-sown clumps&#8221; of 3-4 onions per hole. \u2702\ufe0f The &#8220;Combing&#8221; &#8230; <a title=\"Onion Seedlings Falling Over? How to Trim and Support Them\" class=\"read-more\" href=\"https:\/\/www.tomat-pomidor.com\/en\/onion-seedlings-falling-over\/\" aria-label=\"Read more about Onion Seedlings Falling Over? How to Trim and Support Them\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":3064,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[645],"tags":[],"class_list":["post-3064","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-onion-and-garlic"],"_links":{"self":[{"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/posts\/3064","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/comments?post=3064"}],"version-history":[{"count":3,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/posts\/3064\/revisions"}],"predecessor-version":[{"id":3073,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/posts\/3064\/revisions\/3073"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/posts\/3064"}],"wp:attachment":[{"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/media?parent=3064"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/categories?post=3064"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/tags?post=3064"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}