{"id":10906,"date":"2022-05-19T15:25:20","date_gmt":"2022-05-19T13:25:20","guid":{"rendered":"https:\/\/www.gardensillustrated.com\/?p=80401"},"modified":"2022-05-19T15:33:11","modified_gmt":"2022-05-19T13:33:11","slug":"how-to-grow-dahlias","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/gardensillustrated\/rss_feed\/how-to-grow-dahlias\/","title":{"rendered":"How to grow dahlias"},"content":{"rendered":"<p class=\"rssexcerpt\"><\/p><p class=\"rssauthor\">By Daisy Bowie-Sell\n                \t\t<\/p><p class=\"rssbyline\">Published: Thursday, 19 May 2022 at 12:00 am<\/p><hr class=\"no-tts wp-block-separator\"\/><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><p>After years of being dismissed as old fashioned and garish, dahlias are firmly back in fashion. They are a much loved highlight of the late summer garden, and if deadheaded or cut regularly, they will produce hundreds of flowers until after the first frosts.<\/p>\n<p>Dahlias come in almost every colour imaginable, from cool whites and pale pinks to hotter yellows, oranges and red, to deep magenta and almost black.<\/p>\n<p>Their flower shapes vary greatly, too, ranging from spiky cactus blooms to decorative dahlias, lily-flowered types and the intricate ball and pompon types. The single flowered and anemone types are brilliant for pollinators.<\/p>\n<p>Dahlias combine brilliantly with other late summer flowers such as cannas and ginger lilies for an exotic or jungle look. They also combine very well with <a href=\"\/\/www.gardensillustrated.com\/plants\/autumn\/ornamental-grasses-the-best\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">ornamental grasses<\/a>, which peak at around the same time. Dot them through borders or grow them in a dedicated area on a cutting patch or allotment. The more compact varieties grow very well in pots.<\/p>\n<p>Don\u2019t miss our round up of <a href=\"\/\/www.gardensillustrated.com\/plants\/flowers\/best-dahlias-plant-designer-choice\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">garden designers\u2019 favourite dahlias.\u00a0<\/a><\/p>\n<h2>How to grow dahlias<\/h2>\n<p>You can grow dahlias from tubers, cuttings or seed. All three methods should produce flowers in the same year.<\/p>\n<h3>How to grow dahlias from tubers<\/h3>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?webp=true&amp;quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?webp=true&amp;quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=355%2C236,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=355%2C236,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?webp=true&amp;quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?webp=true&amp;quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=554%2C369,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=554%2C369,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?webp=true&amp;quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=620%2C413,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=620%2C413,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?webp=true&amp;quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?webp=true&amp;quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=556%2C370,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=556%2C370,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img data-crop-width=\"&quot;1701&quot;\" data-crop-height=\"&quot;1133&quot;\" class=\"&quot;wp-image-19725\" align=\"\" size-landscape_thumbnail=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2020\/07\/JI_200718_ParhamGardens_010-bad550b-scaled.jpg?quality=90&amp;crop=3px%2C625px%2C1701px%2C1133px&amp;resize=620%2C413&quot;\" width=\"&quot;620&quot;\" height=\"&quot;413&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> Dahlia \u2018Gwyneth\u2019<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"> <i>\u00a9 Jason Ingram<\/i><\/span><\/div>\n<p>The traditional way to raise <a href=\"\/\/www.gardensillustrated.com\/plants\/flowers\/best-dahlias-plant-designer-choice\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">dahlias<\/a> is from tubers. Order from a dahlia specialist, in January or earlier.<\/p>\n<ul><li>From the beginning of March, bring dahlia tubers into growth in pots in a greenhouse or polytunnel \u2013 they need lots of light and a minimum temperature of 17\u00b0C.<\/li>\n<li>Plant the tubers in large pots of loam-based John Innes No. 2 compost. Keep them moist but not wet. They must be kept warm \u2013 even a hint of frost will check growth and blacken foliage. Use thick fleece to protect them on cold nights.<\/li>\n<li>Once the plant has three to four leaves, pinch the top out to encourage the plant to thicken out.<\/li>\n<li>Do not plant outside until the first week of June, when the young plants are approx 35cm high. Harden off for at least a week beforehand \u2013 this toughens the foliage, helping to deter slugs.<\/li>\n<li>Dahlias will need support, so stake as you plant.<\/li>\n<li>Water well in the first half of summer until established. Feed with a potash-rich plant food once buds appear, and deadhead regularly.<\/li>\n<\/ul><p>\u00a0<\/p>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?webp=true&amp;quality=90&amp;resize=300%2C190,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?quality=90&amp;resize=300%2C190,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?webp=true&amp;quality=90&amp;resize=355%2C225,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?quality=90&amp;resize=355%2C225,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?webp=true&amp;quality=90&amp;resize=405%2C257,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?quality=90&amp;resize=405%2C257,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?webp=true&amp;quality=90&amp;resize=554%2C352,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?quality=90&amp;resize=554%2C352,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?webp=true&amp;quality=90&amp;resize=620%2C393,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?quality=90&amp;resize=620%2C393,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?webp=true&amp;quality=90&amp;resize=408%2C259,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?quality=90&amp;resize=408%2C259,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?webp=true&amp;quality=90&amp;resize=556%2C353,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?quality=90&amp;resize=556%2C353,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-64252\" align=\"\" size-landscape_thumbnail=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2021\/11\/FrancesPalmer_2020_0922_207-b7c6567.jpg?quality=90&amp;resize=620%2C393&quot;\" width=\"&quot;620&quot;\" height=\"&quot;413&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> Frances Palmer\u2019s dahlia cutting garden<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"\/><\/div>\n<h3>How to grow dahlias from cuttings<\/h3>\n<p\/><div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?webp=true&amp;quality=90&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?quality=90&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?webp=true&amp;quality=90&amp;resize=355%2C237,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?quality=90&amp;resize=355%2C237,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?webp=true&amp;quality=90&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?quality=90&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?webp=true&amp;quality=90&amp;resize=554%2C370,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?quality=90&amp;resize=554%2C370,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?webp=true&amp;quality=90&amp;resize=620%2C414&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?quality=90&amp;resize=620%2C414&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?webp=true&amp;quality=90&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?quality=90&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?webp=true&amp;quality=90&amp;resize=556%2C371,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?quality=90&amp;resize=556%2C371,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-80679\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2022\/05\/MdR-9913-048-Ferdinandushof-dahlia-combis-0f73836.jpg?quality=90&amp;resize=620%2C414&quot;\" width=\"&quot;1200&quot;\" height=\"&quot;801&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>Commercially-grown, mail order cuttings don\u2019t tend to arrive until May. Alternatively you can take cuttings from tubers earlier in spring.\n<ul><li>Fill 7.5cm plastic pots with John Innes No. 1\u00a0 <a href=\"\/\/www.gardensillustrated.com\/feature\/best-compost-potting-garden\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">compost<\/a> and water.<\/li>\n<li>Find new shoots that are 75cm long. Cut just above the base where they join the crown. Discard hollow-stemmed cuttings.<\/li>\n<li>Trim just below the lowest pair of leaves and remove leaves carefully. Dampen the end and dip into hormone rooting powder. Insert into the pot (several in one pot), making a hole with a dibber. Firm in and label.<\/li>\n<li>Place in a warm propagator if possible, away from direct sunlight.<\/li>\n<li>They should root within 20 days. Once new leaves appear, pot up individually into John Innes No. 2. Pinch out the growing tip to make the plants more bushy.<\/li>\n<\/ul><p><a href=\"\/\/www.gardensillustrated.com\/plants\/create-this-gorgeous-planting-combination\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">Create this beautiful dahlia combination<\/a><\/p>\n<h3>How to grow dahlias from seed<\/h3>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?webp=true&amp;quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?webp=true&amp;quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=355%2C236,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=355%2C236,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?webp=true&amp;quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?webp=true&amp;quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=554%2C369,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=554%2C369,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?webp=true&amp;quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=620%2C413,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=620%2C413,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?webp=true&amp;quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?webp=true&amp;quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=556%2C370,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=556%2C370,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img data-crop-width=\"&quot;1593&quot;\" data-crop-height=\"&quot;1061&quot;\" class=\"&quot;wp-image-11647\" align=\"\" size-landscape_thumbnail=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/18\/2019\/10\/JI_090818_ParhamGardens_013-b34b1bc.jpg?quality=90&amp;crop=2px%2C770px%2C1593px%2C1061px&amp;resize=620%2C413&quot;\" width=\"&quot;620&quot;\" height=\"&quot;413&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> Dahlia \u2018Black Jack\u2019<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"> <i>\u00a9 Jason Ingram<\/i><\/span><\/div>\n<p>Dahlias are surprisingly easy to grow from seed \u2013 either from packets of mixes of seeds, or seeds that you\u2019ve saved from your own plants. You\u2019ll need to sow them in early spring, in a greenhouse or heated propagator. The seeds should germinate in a couple of weeks.<\/p>\n<ul><li>Fill a pot or seed tray with compost,\u00a0 lightly firm the surface and moisten.<\/li>\n<li>Sow your seeds on to the surface, then cover with a thin layer of compost. Cover with a clear polythene bag or propagator lid.<\/li>\n<li>Once the \u2018true\u2019 leaves appear, transplant into individual pots, holding them by the leaves so as not to damage the delicate stem.<\/li>\n<li>Pot on as necessary.<\/li>\n<li>Harden off before planting out in early June.<\/li>\n<\/ul><h3>Dahlia pests and diseases<\/h3>\n<p><a href=\"\/\/www.gardensillustrated.com\/garden-advice\/how-to\/organic-slug-control-ten-best\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">Slugs<\/a> and snails are the main problem \u2013 the darker leafed dahlias are most prone. Planting out plants when they are at least 35cm high can help, as can watering in the morning as opposed to the evening. <a href=\"\/\/www.gardensillustrated.com\/garden-advice\/how-to\/organic-slug-control-ten-best\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">Read our advice on preventing slug damage<\/a>.<\/p>\n<p>Viruses can also effect dahlias, causing the lower leaves to become mottled, but plants usually grow away from the problem.<\/p>\n<h3>How to overwinter dahlias<\/h3>\n<p>Once dug out at the end of the season, lay the tubers upside down for a couple of weeks in a cool, dry place. This allows moisture to drain out and prevents rotting. Then cover the tubers with sand or sawdust and store in wooden crates over winter. Check regularly for mould.<\/p>\n<p>If you live in a milder part of the UK, you can leave tubers in the ground, covering them with a thick mulch once they have died back in autumn.<\/p>\n<h3>Where to see dahlias<\/h3>\n<p><strong>Halls of Heddon<\/strong> Tubers and cuttings, plus dahlia fields. West Heddon Nursery Centre, Heddon on the Wall, Newcastle-upon-Tyne NE15 0JS. Tel 01661 852445, <a href=\"\/\/www.hallsofheddon.co.uk&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">www.hallsofheddon.co.uk<\/a><\/p>\n<p><strong>National Dahlia Collection<\/strong> The largest collection of dahlias to see growing, with cuttings to buy. Varfell Farm, Long Rock, Penzance, Cornwall TR20 8AQ. Tel 01962 844307, <a href=\"\/\/www.national-dahlia-collection.co.uk&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">www.national-dahlia-collection.co.uk<\/a><\/p>\n<p><strong>RHS Garden Wisley<\/strong> Spectacular dahlia trial to view. Woking, Surrey GU23 6QB. Tel 0845 260 9000, <a href=\"\/\/www.rhs.org.uk\/wisley&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">www.rhs.org.uk\/wisley<\/a><\/p>\n<p><strong>Rose Cottage Plants<\/strong> Specialists in mail-order garden tubers. Tel 01992 573775, <a href=\"\/\/www.rosecottageplants.co.uk&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">www.rosecottageplants.co.uk<\/a><\/p>\n<section class=\"&quot;template-article__editor-content\" editor-content=\"\" ev-meter-content=\"\"><strong>Halls of Heddon<\/strong><br\/>\nWest Heddon Nursery,<br\/>\nHeddon on the Wall,<br\/>\nNewcastle upon Tyne NE15 0JS. Tel 01661 852445,<br\/><a href=\"\/\/www.hallsofheddon.com\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener noopener noreferrer\" noreferrer=\"\">hallsofheddon.com<\/a><\/section><section\/><section class=\"&quot;template-article__editor-content\" editor-content=\"\" ev-meter-content=\"\"><strong>J Parkers<\/strong><br\/>\n16 Hadfield Street, Stretford,<br\/>\nManchester M16 9FG. Tel 0161 848 1100,<br\/><a href=\"\/\/www.jparkers.co.uk\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener noopener noreferrer\" noreferrer=\"\">jparkers.co.uk<\/a><\/section><section\/><section class=\"&quot;template-article__editor-content\" editor-content=\"\" ev-meter-content=\"\"><strong>Peter Nyssen<\/strong><br\/>\n124 Flixton Road, Urmston,<br\/>\nManchester M41 5BG. Tel 0161 747 4000,<br\/><a href=\"\/\/www.peternyssen.com\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener noopener noreferrer\" noreferrer=\"\">peternyssen.com<\/a><\/section><section\/><section class=\"&quot;template-article__editor-content\" editor-content=\"\" ev-meter-content=\"\"><strong>Sarah Raven<\/strong><br\/>\n1 Woodstock Court, Blenheim Road,<br\/>\nMarlborough, Wiltshire SN8 4AN. Tel 0345 092 0283,<br\/><a href=\"\/\/www.sarahraven.com\/&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener noopener noreferrer\" noreferrer=\"\">sarahraven.com<\/a><\/section><div class=\"&quot;template-article__post-content&quot;\">\n<div class=\"&quot;template-article__im-monetizer101-price-comparison&quot;\"\/>\n<\/div><\/body><\/html>\n<hr class=\"no-tts wp-block-separator\"\/>","protected":false},"excerpt":{"rendered":"<p>By Daisy Bowie-Sell Published: Thursday, 19 May 2022 at 12:00 am After years of being dismissed as old fashioned and garish, dahlias are firmly back in fashion. They are a much loved highlight of the late summer garden, and if deadheaded or cut regularly, they will produce hundreds of flowers until after the first frosts. [&hellip;]<\/p>\n","protected":false},"author":24,"featured_media":10907,"template":"","categories":[1,51],"acf":{"readingTimeMinutes":"5"},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/48\/2022\/05\/how-to-grow-dahlias.jpg",1200,801,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/48\/2022\/05\/how-to-grow-dahlias-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/48\/2022\/05\/how-to-grow-dahlias-300x200.jpg",300,200,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/48\/2022\/05\/how-to-grow-dahlias-768x513.jpg",768,513,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/48\/2022\/05\/how-to-grow-dahlias-1024x684.jpg",800,534,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/48\/2022\/05\/how-to-grow-dahlias.jpg",1200,801,false],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/48\/2022\/05\/how-to-grow-dahlias.jpg",1200,801,false]},"uagb_author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/gardensillustrated\/author\/importmanagerhubsprylab-com\/"},"uagb_comment_info":0,"uagb_excerpt":"By Daisy Bowie-Sell Published: Thursday, 19 May 2022 at 12:00 am After years of being dismissed as old fashioned and garish, dahlias are firmly back in fashion. They are a much loved highlight of the late summer garden, and if deadheaded or cut regularly, they will produce hundreds of flowers until after the first frosts.&hellip;","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/gardensillustrated\/wp-json\/wp\/v2\/rss_feed\/10906"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/gardensillustrated\/wp-json\/wp\/v2\/rss_feed"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/gardensillustrated\/wp-json\/wp\/v2\/types\/rss_feed"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/gardensillustrated\/wp-json\/wp\/v2\/users\/24"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/gardensillustrated\/wp-json\/wp\/v2\/media\/10907"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/gardensillustrated\/wp-json\/wp\/v2\/media?parent=10906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/gardensillustrated\/wp-json\/wp\/v2\/categories?post=10906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}