{"product_id":"delphinium-pacific-giant-black-giant-1ltr-pot","title":"Delphinium 'Black Knight' - 1Ltr Pot","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:0dec161d-98ed-48a4-8e7f-b69c1d7e8100-7\" data-testid=\"conversation-turn-16\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"ddd27aa3-fc2d-4629-a0cd-478ba1d84a77\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003ch3 data-section-id=\"x1l9fk\" data-start=\"0\" data-end=\"49\"\u003eDelphinium ‘Black Knight’ – Larkspur (1L Pot)\u003c\/h3\u003e\n\u003cp data-start=\"51\" data-end=\"348\"\u003e\u003cstrong data-start=\"51\" data-end=\"80\"\u003eDelphinium ‘Black Knight’\u003c\/strong\u003e is a dramatic \u003cstrong data-start=\"95\" data-end=\"123\"\u003etall flowering perennial\u003c\/strong\u003e prized for its striking spires of \u003cstrong data-start=\"158\" data-end=\"185\"\u003edeep violet-blue blooms\u003c\/strong\u003e. A classic feature of cottage gardens and herbaceous borders, this elegant delphinium brings \u003cstrong data-start=\"279\" data-end=\"328\"\u003eheight, rich colour, and architectural impact\u003c\/strong\u003e to summer planting.\u003c\/p\u003e\n\u003ch3 data-section-id=\"pm8yra\" data-start=\"350\" data-end=\"370\"\u003e\u003cstrong data-start=\"354\" data-end=\"370\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"372\" data-end=\"830\"\u003e\n\u003cli data-section-id=\"6qpsp3\" data-start=\"372\" data-end=\"447\"\u003e\n\u003cp data-start=\"374\" data-end=\"447\"\u003eProduces \u003cstrong data-start=\"383\" data-end=\"415\"\u003etall, majestic flower spikes\u003c\/strong\u003e reaching \u003cstrong data-start=\"425\" data-end=\"445\"\u003e1.5–2m in height\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1mk73xt\" data-start=\"448\" data-end=\"525\"\u003e\n\u003cp data-start=\"450\" data-end=\"525\"\u003eStunning \u003cstrong data-start=\"459\" data-end=\"487\"\u003edeep violet-blue flowers\u003c\/strong\u003e that create a bold garden statement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"qqax8s\" data-start=\"526\" data-end=\"613\"\u003e\n\u003cp data-start=\"528\" data-end=\"613\"\u003eIdeal for \u003cstrong data-start=\"538\" data-end=\"611\"\u003ecottage gardens, herbaceous borders, and traditional planting schemes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"q5l8vp\" data-start=\"614\" data-end=\"679\"\u003e\n\u003cp data-start=\"616\" data-end=\"679\"\u003e\u003cstrong data-start=\"616\" data-end=\"645\"\u003eAttractive to pollinators\u003c\/strong\u003e, including bees and butterflies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1p80mti\" data-start=\"680\" data-end=\"749\"\u003e\n\u003cp data-start=\"682\" data-end=\"749\"\u003eExcellent \u003cstrong data-start=\"692\" data-end=\"714\"\u003ecut flower variety\u003c\/strong\u003e for dramatic floral arrangements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1r4wjsv\" data-start=\"750\" data-end=\"830\"\u003e\n\u003cp data-start=\"752\" data-end=\"830\"\u003eCan produce a \u003cstrong data-start=\"766\" data-end=\"793\"\u003esecond flush of flowers\u003c\/strong\u003e if stems are cut back after blooming\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1gh5l1n\" data-start=\"832\" data-end=\"859\"\u003e\u003cstrong data-start=\"836\" data-end=\"859\"\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"861\" data-end=\"1201\"\u003e\u003cstrong data-start=\"861\" data-end=\"890\"\u003eDelphinium ‘Black Knight’\u003c\/strong\u003e is one of the most admired varieties of delphinium, known for its \u003cstrong data-start=\"957\" data-end=\"1008\"\u003erichly coloured, deep violet-blue flower spikes\u003c\/strong\u003e that rise elegantly above a mound of \u003cstrong data-start=\"1046\" data-end=\"1079\"\u003edeeply cut grey-green foliage\u003c\/strong\u003e. Flowering from \u003cstrong data-start=\"1096\" data-end=\"1120\"\u003eJune through to July\u003c\/strong\u003e, the densely packed blooms create a striking vertical display in summer borders.\u003c\/p\u003e\n\u003cp data-start=\"1203\" data-end=\"1539\"\u003eThis classic perennial is particularly effective when planted in \u003cstrong data-start=\"1268\" data-end=\"1326\"\u003ebold groups at the back of mixed or herbaceous borders\u003c\/strong\u003e, where its height and strong colour can be fully appreciated. The dramatic blue tones pair beautifully with \u003cstrong data-start=\"1435\" data-end=\"1494\"\u003ecreamy white, pastel, or soft pink flowering perennials\u003c\/strong\u003e, creating a timeless cottage garden palette.\u003c\/p\u003e\n\u003cp data-start=\"1541\" data-end=\"1770\"\u003eAlthough the main flowering period is relatively short, \u003cstrong data-start=\"1597\" data-end=\"1641\"\u003ecutting back spent flower stems promptly\u003c\/strong\u003e can encourage a \u003cstrong data-start=\"1658\" data-end=\"1704\"\u003esecond flush of blooms later in the season\u003c\/strong\u003e, extending the display and adding further interest to the garden.\u003c\/p\u003e\n\u003ch3 data-section-id=\"2l0mzs\" data-start=\"1772\" data-end=\"1794\"\u003e\u003cstrong data-start=\"1776\" data-end=\"1794\"\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1796\" data-end=\"2456\"\u003e\n\u003cli data-section-id=\"f0586u\" data-start=\"1796\" data-end=\"1845\"\u003e\n\u003cp data-start=\"1798\" data-end=\"1845\"\u003eBotanical Name: \u003cstrong data-start=\"1814\" data-end=\"1843\"\u003eDelphinium ‘Black Knight’\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1na2s7c\" data-start=\"1846\" data-end=\"1875\"\u003e\n\u003cp data-start=\"1848\" data-end=\"1875\"\u003eCommon Name: \u003cstrong data-start=\"1861\" data-end=\"1873\"\u003eLarkspur\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1z0gw6w\" data-start=\"1876\" data-end=\"1916\"\u003e\n\u003cp data-start=\"1878\" data-end=\"1916\"\u003ePlant Type: \u003cstrong data-start=\"1890\" data-end=\"1914\"\u003eHerbaceous perennial\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1gc89be\" data-start=\"1917\" data-end=\"1941\"\u003e\n\u003cp data-start=\"1919\" data-end=\"1941\"\u003ePot Size: \u003cstrong data-start=\"1929\" data-end=\"1939\"\u003e1L pot\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"tpyfe7\" data-start=\"1942\" data-end=\"1973\"\u003e\n\u003cp data-start=\"1944\" data-end=\"1973\"\u003eMature Height: \u003cstrong data-start=\"1959\" data-end=\"1971\"\u003e1.5–2.0m\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"86mzgj\" data-start=\"1974\" data-end=\"2005\"\u003e\n\u003cp data-start=\"1976\" data-end=\"2005\"\u003eMature Spread: \u003cstrong data-start=\"1991\" data-end=\"2003\"\u003e0.5–1.0m\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1h80o51\" data-start=\"2006\" data-end=\"2045\"\u003e\n\u003cp data-start=\"2008\" data-end=\"2045\"\u003eFlower Colour: \u003cstrong data-start=\"2023\" data-end=\"2043\"\u003eDeep violet-blue\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1xtbiw7\" data-start=\"2046\" data-end=\"2093\"\u003e\n\u003cp data-start=\"2048\" data-end=\"2093\"\u003eFlowering Period: \u003cstrong data-start=\"2066\" data-end=\"2091\"\u003eJune to July (summer)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1x3jbbq\" data-start=\"2094\" data-end=\"2150\"\u003e\n\u003cp data-start=\"2096\" data-end=\"2150\"\u003eFoliage: \u003cstrong data-start=\"2105\" data-end=\"2148\"\u003eDeciduous, grey-green deeply cut leaves\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ny790i\" data-start=\"2151\" data-end=\"2179\"\u003e\n\u003cp data-start=\"2153\" data-end=\"2179\"\u003eGrowth Rate: \u003cstrong data-start=\"2166\" data-end=\"2177\"\u003eAverage\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"petfsz\" data-start=\"2180\" data-end=\"2210\"\u003e\n\u003cp data-start=\"2182\" data-end=\"2210\"\u003eHardiness: \u003cstrong data-start=\"2193\" data-end=\"2208\"\u003eFully hardy\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ghrtxs\" data-start=\"2211\" data-end=\"2237\"\u003e\n\u003cp data-start=\"2213\" data-end=\"2237\"\u003ePosition: \u003cstrong data-start=\"2223\" data-end=\"2235\"\u003eFull sun\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1j7w826\" data-start=\"2238\" data-end=\"2304\"\u003e\n\u003cp data-start=\"2240\" data-end=\"2304\"\u003eSoil Moisture: \u003cstrong data-start=\"2255\" data-end=\"2302\"\u003eMoist but well-drained or well-drained soil\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ph3ya3\" data-start=\"2305\" data-end=\"2350\"\u003e\n\u003cp data-start=\"2307\" data-end=\"2350\"\u003eSoil Type: \u003cstrong data-start=\"2318\" data-end=\"2348\"\u003eChalk, loam or sandy soils\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ivxkc1\" data-start=\"2351\" data-end=\"2393\"\u003e\n\u003cp data-start=\"2353\" data-end=\"2393\"\u003eSoil pH: \u003cstrong data-start=\"2362\" data-end=\"2391\"\u003eAcid, neutral or alkaline\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"tp26l9\" data-start=\"2394\" data-end=\"2456\"\u003e\n\u003cp data-start=\"2396\" data-end=\"2456\"\u003eGarden Use: \u003cstrong data-start=\"2408\" data-end=\"2456\"\u003eBorders, cottage gardens, cut flower gardens\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"3vtxt9\" data-start=\"2458\" data-end=\"2475\"\u003e\u003cstrong data-start=\"2462\" data-end=\"2475\"\u003eCare Tips\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2477\" data-end=\"2913\"\u003e\n\u003cli data-section-id=\"nlw7ag\" data-start=\"2477\" data-end=\"2563\"\u003e\n\u003cp data-start=\"2479\" data-end=\"2563\"\u003ePlant in \u003cstrong data-start=\"2488\" data-end=\"2518\"\u003efertile, well-drained soil\u003c\/strong\u003e in a \u003cstrong data-start=\"2524\" data-end=\"2542\"\u003esunny position\u003c\/strong\u003e for best flowering\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1s1b90i\" data-start=\"2564\" data-end=\"2639\"\u003e\n\u003cp data-start=\"2566\" data-end=\"2639\"\u003eChoose a \u003cstrong data-start=\"2575\" data-end=\"2597\"\u003esheltered location\u003c\/strong\u003e to protect tall stems from strong winds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"eyzsq4\" data-start=\"2640\" data-end=\"2698\"\u003e\n\u003cp data-start=\"2642\" data-end=\"2698\"\u003e\u003cstrong data-start=\"2642\" data-end=\"2663\"\u003eStake stems early\u003c\/strong\u003e before the flower spikes develop\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"o761be\" data-start=\"2699\" data-end=\"2759\"\u003e\n\u003cp data-start=\"2701\" data-end=\"2759\"\u003e\u003cstrong data-start=\"2701\" data-end=\"2747\"\u003eProtect young shoots from slugs and snails\u003c\/strong\u003e in spring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1n4jj3m\" data-start=\"2760\" data-end=\"2839\"\u003e\n\u003cp data-start=\"2762\" data-end=\"2839\"\u003e\u003cstrong data-start=\"2762\" data-end=\"2799\"\u003eDeadhead and cut back spent stems\u003c\/strong\u003e to encourage a second flush of blooms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ff80dm\" data-start=\"2840\" data-end=\"2913\"\u003e\n\u003cp data-start=\"2842\" data-end=\"2913\"\u003eWater during dry periods to keep the soil \u003cstrong data-start=\"2884\" data-end=\"2913\"\u003emoist but not waterlogged\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2915\" data-end=\"3121\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eAdd \u003cstrong data-start=\"2919\" data-end=\"2948\"\u003eDelphinium ‘Black Knight’\u003c\/strong\u003e to your garden for \u003cstrong data-start=\"2968\" data-end=\"3045\"\u003edramatic height, intense summer colour, and timeless cottage garden charm\u003c\/strong\u003e—a perfect choice for creating an eye-catching focal point in sunny borders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cdiv aria-hidden=\"true\" data-edge=\"true\" class=\"pointer-events-none h-px w-px absolute bottom-0\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Chapel Cottage Plants","offers":[{"title":"Default Title","offer_id":57626725974400,"sku":"30167362","price":4.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0762\/3570\/2578\/files\/artemisia-powis-castle-wormwood-1ltr-pot.jpg_2_d2cfdd45-188b-413b-9512-52d4bc09cd9d.jpg?v=1773678571","url":"https:\/\/oldrailwaylinegc.co.uk\/products\/delphinium-pacific-giant-black-giant-1ltr-pot","provider":"Old Railway Line Garden Centre","version":"1.0","type":"link"}