{"product_id":"centaurea-scabiosa-great-knapweed-30211088","title":"Centaurea Seeds 'Great Knapweed'","description":"\u003cul\u003e\n\u003cli\u003eNative British wildflower\u003c\/li\u003e\n\u003cli\u003eGorgeous purple flowers in summer\u003c\/li\u003e\n\u003cli\u003eGrows well in poor soils\u003c\/li\u003e\n\u003cli\u003eSelf-seeds liberally\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA native British wildflower that thrives on neglect, Centaurea scabiosa (great knapweed) grows even in poor, dry soils, producing gorgeous thistle-like purple flowers that bees and other pollinators love to visit. It makes a beautiful addition to a wildlife-friendly border and will self-seed freely.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSow indoors\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSow in \u003ca href=\"https:\/\/mershallsgarden.com\/collections\/potting-propagation\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003etrays\u003c\/span\u003e\u003c\/a\u003e of pre-watered \u003ca href=\"https:\/\/mershallsgarden.com\/collections\/seed-compost\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eseed compost\u003c\/span\u003e\u003c\/a\u003e and cover lightly. Keep at 15-20°C and allow 2 weeks for germination.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrow on\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen large enough to handle. transplant into 8cm pots. Slowly acclimatise to outdoor conditions before planting out after frosts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlant out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChoose a sunny spot in any well-drained soil. Plant approximately 25cm apart. Height may vary. For earlier flowering, sow in autumn and overwinter in a cold frame before planting out in spring. Self-seeds readily.\u003c\/p\u003e","brand":"Marshalls Garden","offers":[{"title":"75 Seeds","offer_id":40909473415219,"sku":"30211088","price":3.49,"currency_code":"GBP","in_stock":true},{"title":"3 x 75 Seeds","offer_id":56381412049275,"sku":"50103093","price":10.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0104\/8100\/8691\/products\/3021-1088-NH-Great-Knapweed-from-Unwins.jpg?v=1663253988","url":"https:\/\/mershallsgarden.com\/products\/centaurea-scabiosa-great-knapweed-30211088","provider":"Marshalls Garden","version":"1.0","type":"link"}