{"product_id":"lincolnshire-pond-plants-pontederia-cordata-pickerel-weed-pond-marginal-plant","title":"Pontederia cordata - Pickerel Weed, Pond Marginal Plant","description":"\u003cp\u003ePontederia cordata, known as pickerel weed, is a marginal pond plant from North America with bright green, heart-shaped leaves and dense spikes of blue flowers from July to September. It holds the RHS Award of Garden Merit.\u003c\/p\u003e\n\u003ch2\u003ePickerel weed at a glance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBotanical name\u003c\/th\u003e\n\u003ctd\u003ePontederia cordata\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCommon name\u003c\/th\u003e\n\u003ctd\u003ePickerel weed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlant type\u003c\/th\u003e\n\u003ctd\u003eClump-forming perennial; dies back in winter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight and spread\u003c\/th\u003e\n\u003ctd\u003eUsually 50–120 cm tall (RHS: up to 1.5 m), 50–100 cm wide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlowers\u003c\/th\u003e\n\u003ctd\u003eBlue, in dense spikes up to 15 cm long, July to September\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePosition\u003c\/th\u003e\n\u003ctd\u003eFull sun\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSoil\u003c\/th\u003e\n\u003ctd\u003eFertile loam in shallow water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePond depth\u003c\/th\u003e\n\u003ctd\u003e10–15 cm of water over the crown (a 20–25 cm shelf in cold areas)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardiness\u003c\/th\u003e\n\u003ctd\u003eRHS H5 – hardy in a cold winter (-15 to -10°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNative to\u003c\/th\u003e\n\u003ctd\u003eEastern North America (not UK native)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWhere to plant pickerel weed\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eA sunny pond shelf with 10–15 cm of water over the crown\u003c\/li\u003e\n\u003cli\u003eGarden and formal ponds, where the upright leaves give structure\u003c\/li\u003e\n\u003cli\u003eLarger wildlife ponds alongside native marginals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eIs pickerel weed hardy?\u003c\/h2\u003e\n\u003cp\u003eYes. The RHS rates it H5, hardy to between -10°C and -15°C. In very cold areas, a deeper shelf of 20–25 cm protects the crown from ice.\u003c\/p\u003e\n\u003ch2\u003eIs it good for wildlife?\u003c\/h2\u003e\n\u003cp\u003eThe flowers are visited by bees, butterflies and hoverflies, and dragonfly larvae climb the stems to emerge. As a non-native plant, keep it to garden ponds and do not plant it in the wild.\u003c\/p\u003e\n\u003ch2\u003eHow to plant and care for it\u003c\/h2\u003e\n\u003cp\u003ePlant in an aquatic basket of loam from late spring, once the water warms. Cut back the leaves as they collapse in autumn and divide clumps every 2–3 years in spring. Koi and ducks may eat young growth.\u003c\/p\u003e\n\u003ch2\u003eWhich size should I buy?\u003c\/h2\u003e\n\u003cp\u003eBare-root plants (7 cm, 9 cm, 1 litre and 3 litre) arrive without a pot or compost and are the most economical way to plant a group. Potted plants (9 cm, 1 litre and 3 litre) arrive growing in our peat-free compost and give a faster display. Packs of 3 cost less per plant. The 2x Pot \u0026amp; Compost option is two plants supplied with pots and compost.\u003c\/p\u003e\n","brand":"Lincolnshire Pond Plants","offers":[{"title":"1 \/ 7cm Bareroot","offer_id":54368596033869,"sku":"MP092-plug","price":2.6,"currency_code":"GBP","in_stock":false},{"title":"1 \/ 9cm Bareroot","offer_id":54368596066637,"sku":"MP092-9cm","price":6.8,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 9cm Potted","offer_id":54324705984845,"sku":"MP092-9cmpot","price":8.8,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 1Ltr Bareroot","offer_id":54368596099405,"sku":"MP092-1ltr","price":10.72,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 1Ltr Potted","offer_id":54324706050381,"sku":"MP092-1ltrpot","price":12.67,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 3Ltr Bareroot","offer_id":54368596132173,"sku":"MP092-3ltr","price":19.5,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 3Ltr Potted","offer_id":54324706115917,"sku":"MP092-3ltrpot","price":23.4,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 2x Pot \u0026 Compost","offer_id":54368596164941,"sku":"MP092-2xpot-2xcompost","price":24.0,"currency_code":"GBP","in_stock":true},{"title":"3 \/ 7cm Bareroot","offer_id":54368596197709,"sku":"MP092-Plug-3x","price":7.41,"currency_code":"GBP","in_stock":false},{"title":"3 \/ 9cm Bareroot","offer_id":54368596230477,"sku":"MP092-9cm-3x","price":19.38,"currency_code":"GBP","in_stock":true},{"title":"3 \/ 1Ltr Bareroot","offer_id":54368596263245,"sku":"MP092-1Ltr-3x","price":30.55,"currency_code":"GBP","in_stock":true},{"title":"3 \/ 3Ltr Bareroot","offer_id":54368596296013,"sku":"MP092-3Ltr-3x","price":55.58,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/6961\/6973\/files\/pontederia-cordata.jpg?v=1788271073","url":"https:\/\/thefoalyard.co.uk\/products\/lincolnshire-pond-plants-pontederia-cordata-pickerel-weed-pond-marginal-plant","provider":"The Foalyard","version":"1.0","type":"link"}