{"id":854,"date":"2026-08-25T15:03:55","date_gmt":"2026-08-25T15:03:55","guid":{"rendered":"https:\/\/www.tomat-pomidor.com\/en\/?p=854"},"modified":"2026-08-25T15:03:55","modified_gmt":"2026-08-25T15:03:55","slug":"heartbreaker","status":"publish","type":"post","link":"https:\/\/www.tomat-pomidor.com\/en\/heartbreaker\/","title":{"rendered":"Heartbreaker (Serdtseed) Tomato Review &#038; Growing Tips"},"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;854&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;Rate this&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Heartbreaker (Serdtseed) Tomato Review \\u0026amp; Growing Tips&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\">Rate this<\/span>\n    <\/div>\n    <\/div>\n<h2>Quick Summary of Heartbreaker (Serdtseed)<\/h2>\n<ul>\n<li>\ud83c\udf0d <strong>Origin &amp; Name:<\/strong> A Russian commercial heirloom variety. The name translates beautifully into English as &#8220;Heartbreaker&#8221; (Serdtseed). Cultivated and circulated by well-known private seed collectors like Yashchenko and Redko.<\/li>\n<li>\ud83c\udf3f <strong>Plant Habit:<\/strong> Indeterminate (tall), usually growing to about 1.5 meters (5 ft). It features classic oxheart genetics with <strong>sparse, wispy foliage<\/strong>.<\/li>\n<li>\u2702\ufe0f <strong>Growing Tip (Pruning):<\/strong> The official seed packet gives a very strict instruction: to achieve the massive fruit sizes this variety is known for, it must be strictly pruned and trained to a <strong>single stem<\/strong>.<\/li>\n<li>\ud83c\udf45 <strong>Fruit Characteristics:<\/strong> Classic red heart-shaped (oxheart) tomatoes. They are very large, officially averaging 300-500g (10-18 oz), with some individual fruits capable of reaching 700g (1.5 lbs) when properly pruned.<\/li>\n<li>\ud83d\udc45 <strong>Flavor &amp; Culinary Use:<\/strong> Highly praised for its taste. The flesh is tender, juicy, and described as &#8220;sugary&#8221; with a pronounced traditional tomato aroma. Excellent for fresh eating, but also highly suitable for making juices and canning.<\/li>\n<\/ul>\n<p><em>\ud83c\udf45 <strong>Have you grown this variety?<\/strong> Scroll down to <strong>add your review and photos<\/strong> in the comments below!<\/em><\/p>\n<div class=\"forum-post\">\n<div class=\"author-header\">\n<div class=\"forum-avatar\">S<\/div>\n<div class=\"author-meta\">\n<div class=\"author-name\">Sweet (Svetlana) <span class=\"author-stats\">\u2b50 Pro Grower (8,792 posts)<\/span><\/div>\n<div class=\"author-geo\">\ud83d\udccd Belgorod region (USDA Zone 5)<\/div>\n<\/div>\n<\/div>\n<div class=\"post-content\">\n<p><strong>Description from the seed packet:<\/strong><br \/>\n<em>Mid-early variety (100-105 days from germination to fruiting). Intended for growing in open ground and film greenhouses. The plant has sparse foliage, up to 150 cm (5 ft) tall; pruning to a single stem is mandatory. Fruits weigh from 300 to 500g (10-18 oz), with some individual fruits up to 700g (1.5 lbs). They are heart-shaped, red, juicy, tender, with sugary flesh and a characteristic aroma. The taste qualities of the fruits are very high. Yield per bush reaches 2.5-3.5 kg (5.5-7.7 lbs). Planting spacing is 40&#215;70 cm (16&#215;27 inches). Intended for fresh consumption, making juices, and suitable for pickling and canning.<\/em><\/p>\n<p><em>(Photo credits: IrinaA, Valentina 54, Danko)<\/em><\/p>\n<p><a href=\"https:\/\/www.tomat-pomidor.com\/uploads\/newforum\/galleries\/1\/12-011113133557.jpeg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.tomat-pomidor.com\/uploads\/newforum\/galleries\/1\/thumb_12-011113133557.jpeg\" alt=\"Red Heartbreaker oxheart tomato on a scale\" width=\"120\" height=\"160\" \/><\/a><br \/>\n<a href=\"https:\/\/www.tomat-pomidor.com\/uploads\/newforum\/galleries\/6\/462-210114104043.jpeg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.tomat-pomidor.com\/uploads\/newforum\/galleries\/6\/thumb_462-210114104043.jpeg\" alt=\"Large red Heartbreaker tomato on the vine\" width=\"160\" height=\"120\" \/><\/a><br \/>\n<a href=\"https:\/\/www.tomat-pomidor.com\/uploads\/newforum\/galleries\/6\/462-210114112908.jpeg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.tomat-pomidor.com\/uploads\/newforum\/galleries\/6\/thumb_462-210114112908.jpeg\" alt=\"Massive oxheart tomato resting in hand\" width=\"160\" height=\"120\" \/><\/a><br \/>\n<a href=\"https:\/\/www.tomat-pomidor.com\/uploads\/newforum\/galleries\/29\/47-070814092048.jpeg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.tomat-pomidor.com\/uploads\/newforum\/galleries\/29\/thumb_47-070814092048.jpeg\" alt=\"Perfectly shaped Heartbreaker tomato\" width=\"120\" height=\"160\" \/><\/a><\/p>\n<\/div>\n<\/div>\n<div class=\"forum-post\">\n<div class=\"author-header\">\n<div class=\"forum-avatar\">S<\/div>\n<div class=\"author-meta\">\n<div class=\"author-name\">Svetlyachok-plus (Svetlana) <span class=\"author-stats\">\u2b50 Pro Grower (1,450 posts)<\/span><\/div>\n<div class=\"author-geo\">\ud83d\udccd Unknown<\/div>\n<\/div>\n<\/div>\n<div class=\"post-content\">\n<p>Svetik, is it really that good in taste? And which seed company were the seeds from?<\/p>\n<\/div>\n<\/div>\n<div class=\"forum-post\">\n<div class=\"author-header\">\n<div class=\"forum-avatar\">V<\/div>\n<div class=\"author-meta\">\n<div class=\"author-name\">Valentina 54 (Valentina) <span class=\"author-stats\">\u2b50 Pro Grower (15,095 posts)<\/span><\/div>\n<div class=\"author-geo\">\ud83d\udccd Severouralsk, Sverdlovsk region (USDA Zone 3)<\/div>\n<\/div>\n<\/div>\n<div class=\"post-content\">\n<blockquote><p><strong>Svetlana said:<\/strong><br \/>\nSvetik, is it really that good in taste? And which seed company were the seeds from?<\/p><\/blockquote>\n<p>Very tasty. My seeds originally came from Yashchenko (private collector). I sent them out to a lot of the girls on the forum last year.<\/p>\n<\/div>\n<\/div>\n<div class=\"forum-post\">\n<div class=\"author-header\">\n<div class=\"forum-avatar\">P<\/div>\n<div class=\"author-meta\">\n<div class=\"author-name\">Plena (Elena) <span class=\"author-stats\">\u2b50 Pro Grower (9,235 posts)<\/span><\/div>\n<div class=\"author-geo\">\ud83d\udccd Moscow Region, near Solnechnogorsk (USDA Zone 4)<\/div>\n<\/div>\n<\/div>\n<div class=\"post-content\">\n<p>It grew outdoors for me under a temporary cover. The bush reached about 1.1 m (3.6 ft). It turned out to be quite voluminous\/bushy, and it was not early. The tomatoes were up to 250g (8.8 oz).<\/p>\n<p>My seeds originally seemed to come from Redko.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Quick Summary of Heartbreaker (Serdtseed) \ud83c\udf0d Origin &amp; Name: A Russian commercial heirloom variety. The name translates beautifully into English as &#8220;Heartbreaker&#8221; (Serdtseed). Cultivated and circulated by well-known private seed collectors like Yashchenko and Redko. \ud83c\udf3f Plant Habit: Indeterminate (tall), usually growing to about 1.5 meters (5 ft). It features classic oxheart genetics with sparse, &#8230; <a title=\"Heartbreaker (Serdtseed) Tomato Review &#038; Growing Tips\" class=\"read-more\" href=\"https:\/\/www.tomat-pomidor.com\/en\/heartbreaker\/\" aria-label=\"Read more about Heartbreaker (Serdtseed) Tomato Review &#038; Growing Tips\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":854,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,438,5],"tags":[72,11,33,82,23,49,15,14],"class_list":["post-854","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-beefsteak-large-slicers","category-red-tomatoes","category-russian-eastern-european-heirlooms","tag-greenhouse-tomato","tag-huge-tomato","tag-indeterminate","tag-meaty-tomato","tag-mid-season","tag-open-ground","tag-sweet-flavor","tag-wispy-foliage"],"_links":{"self":[{"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/posts\/854","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=854"}],"version-history":[{"count":2,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/posts\/854\/revisions"}],"predecessor-version":[{"id":856,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/posts\/854\/revisions\/856"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/posts\/854"}],"wp:attachment":[{"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/media?parent=854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/categories?post=854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tomat-pomidor.com\/en\/wp-json\/wp\/v2\/tags?post=854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}