{"product_id":"dahlia-blue-edge-giant-purple-dinnerplate-dahlia-tuber","title":"Dahlia ‘Blue Edge’ | Giant Purple Dinnerplate Dahlia Tuber","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDahlia ‘Blue Edge’ produces enormous purple blooms that develop an attractive blue sheen in sunlight. Its fully double dinnerplate flowers can reach approximately 30cm across, creating an impressive display in garden beds, large pots and cut-flower arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eGiant dinnerplate dahlia\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePurple blooms with a distinctive blue sheen\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFlowers can reach approximately 30cm across\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGrows up to approximately 1.5m tall\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFlowers from summer into autumn\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for garden beds and large containers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eExcellent cut flower with a good vase life\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupplied as one dormant tuber\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Details\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBotanical name:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Dahlia hybrid ‘Blue Edge’\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFamily:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Asteraceae\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eType:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Giant dinnerplate dahlia\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFlower colour:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Purple with a blue sheen in sunlight\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFlower size:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Up to approximately 30cm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMature height:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Up to approximately 1.5m\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePlant spacing:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 60cm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePlanting depth:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 10cm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePlanting period:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Spring to early summer\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFlowering period:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Summer to autumn\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePosition:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Full sun to light shade\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eQuantity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e One dormant tuber\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDespite its name, ‘Blue Edge’ is not a true blue dahlia. Its flowers are purple, with lighting conditions creating the distinctive blue-toned sheen.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTuber size, shape and the number of visible growing points will naturally vary. Images show the expected mature flowers and are provided as a guide. Colour, size and form may vary with climate and growing conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePlanting and Care\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eChoose a sunny position with fertile, well-drained soil. In warmer regions, some protection from intense afternoon sun can be beneficial.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePlant the tuber approximately 10cm deep with the growing eye facing upwards. Space plants approximately 60cm apart and install a sturdy stake at planting time to avoid disturbing the roots later.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWater sparingly until shoots emerge, as dormant tubers can rot in persistently wet soil. Once active growth begins, water regularly during dry periods without allowing the soil to become waterlogged.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePrepare the soil with well-rotted organic matter and apply a complete fertiliser during active growth. Avoid excessive nitrogen, which can produce abundant foliage at the expense of flowers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRemove spent blooms regularly to encourage continued flowering. Protect young growth from snails and slugs.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eGrowing in Pots\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e‘Blue Edge’ can be grown in a large pot or tub filled with premium, well-draining potting mix. Use a stable container and provide strong support for the tall stems. Flowers grown in containers may be smaller than those grown in open garden beds.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat colour is Dahlia ‘Blue Edge’?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eIt produces purple flowers that can take on a noticeable blue sheen in sunlight. It is not a genuinely blue dahlia.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eHow large are the flowers?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe giant dinnerplate blooms can grow up to approximately 30cm across under suitable conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eHow tall does it grow?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003ePlants can reach approximately 1.5m tall.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDoes it require staking?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eYes. Staking is recommended to support the tall stems and large, heavy flowers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCan it be grown in a pot?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eYes. Use a large, stable container with excellent drainage. Container-grown flowers may be smaller.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eIs it suitable for cutting?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eYes. ‘Blue Edge’ produces striking cut flowers with a good vase life.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhen should the tuber be planted?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003ePlant during spring or early summer once the soil has warmed and the risk of frost has passed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat is included?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThis listing includes one dormant Dahlia ‘Blue Edge’ tuber.\u003c\/span\u003e\u003c\/p\u003e","brand":"Oldboy's Flowers","offers":[{"title":"Default Title","offer_id":45863604879413,"sku":null,"price":19.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0297\/4629\/8933\/files\/Untitleddesign-2026-08-06T162453.072.jpg?v=1785997518","url":"https:\/\/www.oldboysflowers.com.au\/products\/dahlia-blue-edge-giant-purple-dinnerplate-dahlia-tuber","provider":"Oldboy's Flowers","version":"1.0","type":"link"}