{"product_id":"lincolnshire-pond-plants-acorus-calamus-sweet-flag-aromatic-pond-marginal-plant","title":"Acorus calamus - Sweet Flag, Aromatic Pond Marginal Plant","description":"\u003cp\u003eAcorus calamus, known as sweet flag, is a tall marginal plant grown for its upright, bright green, sword-shaped leaves, which smell of citrus when crushed. It looks like an iris in leaf but does not have showy flowers.\u003c\/p\u003e\n\u003ch2\u003eSweet flag at a glance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBotanical name\u003c\/th\u003e\n\u003ctd\u003eAcorus calamus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCommon name\u003c\/th\u003e\n\u003ctd\u003eSweet flag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlant type\u003c\/th\u003e\n\u003ctd\u003eUpright, rhizomatous 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\u003e60–90 cm tall, 50–100 cm wide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlowers\u003c\/th\u003e\n\u003ctd\u003eSmall, brownish, horn-like spike in early summer; only plants growing in water flower\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\u003eWet soil or shallow water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePond depth\u003c\/th\u003e\n\u003ctd\u003e0–15 cm of water over the crown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardiness\u003c\/th\u003e\n\u003ctd\u003eRHS H7 – very hardy (below -20°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNative to\u003c\/th\u003e\n\u003ctd\u003eNot UK native; introduced to Britain by 1582\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eIs sweet flag native to the UK?\u003c\/h2\u003e\n\u003cp\u003eNo. It was brought to England by 1582 and now grows wild in places, but it is not a native plant. It does not set seed in Britain and spreads only by its roots.\u003c\/p\u003e\n\u003ch2\u003eWhere to plant sweet flag\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eA sunny pond shelf with up to 15 cm of water over the crown\u003c\/li\u003e\n\u003cli\u003eWet ground at the edge of larger ponds\u003c\/li\u003e\n\u003cli\u003eFormal ponds, for strong upright leaves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to plant and care for it\u003c\/h2\u003e\n\u003cp\u003ePlant in a wide aquatic basket in spring or summer, as the roots spread sideways. Cut back old leaves in autumn and divide every few years to stop clumps becoming congested.\u003c\/p\u003e\n\u003ch2\u003eIs sweet flag poisonous?\u003c\/h2\u003e\n\u003cp\u003eYes. It contains beta-asarone, which is toxic, and it should not be eaten.\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":54368642302285,"sku":"MP001-plug","price":2.6,"currency_code":"GBP","in_stock":false},{"title":"1 \/ 9cm Bareroot","offer_id":54368642335053,"sku":"MP001-9cm","price":6.8,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 9cm Potted","offer_id":54324736590157,"sku":"MP001-9cmpot","price":8.8,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 1Ltr Bareroot","offer_id":54368642367821,"sku":"MP001-1ltr","price":10.72,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 1Ltr Potted","offer_id":54324736655693,"sku":"MP001-1ltrpot","price":12.67,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 3Ltr Bareroot","offer_id":54368642400589,"sku":"MP001-3ltr","price":19.5,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 3Ltr Potted","offer_id":54324736721229,"sku":"MP001-3ltrpot","price":23.4,"currency_code":"GBP","in_stock":true},{"title":"1 \/ 2x Pot \u0026 Compost","offer_id":54368642433357,"sku":"MP001-2xpot-2xcompost","price":24.0,"currency_code":"GBP","in_stock":true},{"title":"3 \/ 7cm Bareroot","offer_id":54368642466125,"sku":"MP001-Plug-3x","price":7.41,"currency_code":"GBP","in_stock":false},{"title":"3 \/ 9cm Bareroot","offer_id":54368642498893,"sku":"MP001-9cm-3x","price":19.38,"currency_code":"GBP","in_stock":true},{"title":"3 \/ 1Ltr Bareroot","offer_id":54368642531661,"sku":"MP001-1Ltr-3x","price":30.55,"currency_code":"GBP","in_stock":true},{"title":"3 \/ 3Ltr Bareroot","offer_id":54368642564429,"sku":"MP001-3Ltr-3x","price":55.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/6961\/6973\/files\/Acorus-calamus-01-scaled.jpg?v=1784368880","url":"https:\/\/thefoalyard.co.uk\/products\/lincolnshire-pond-plants-acorus-calamus-sweet-flag-aromatic-pond-marginal-plant","provider":"The Foalyard","version":"1.0","type":"link"}