{"product_id":"ceratophyllum-hornwort-1-50-bunches-oxygenating-pond-water-plants-weighted-ox003","title":"Ceratophyllum demersum (Hornwort)","description":"\u003cp\u003e\u003cem\u003eCeratophyllum demersum\u003c\/em\u003e, commonly known as Hornwort, is a fully submerged aquatic plant used to maintain clean and balanced ponds. It grows naturally in lakes, ponds, and slow rivers across the UK and Europe. If you want clear water and a stable pond, this plant is a practical choice.\u003c\/p\u003e\n\u003cp\u003eThis species forms soft, bushy growth made of fine, forked leaves arranged in whorls along the stem. The leaves become more crowded near the growing tips, which gives a dense, feathery look. The plant floats freely below the surface and does not need planting in soil.\u003c\/p\u003e\n\u003cp\u003eIts flowers are small and appear in the leaf axils during summer. Most pond keepers focus on the plant’s function rather than its appearance. It grows fast and absorbs excess nutrients that would otherwise feed algae.\u003c\/p\u003e\n\u003cp\u003eYou may also find \u003cem\u003eCeratophyllum demersum\u003c\/em\u003e sold under these names:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCedar moss\u003c\/li\u003e\n\u003cli\u003eCoon tail\u003c\/li\u003e\n\u003cli\u003eFish blankets\u003c\/li\u003e\n\u003cli\u003eHorn weed\u003c\/li\u003e\n\u003cli\u003eMorass weed\u003c\/li\u003e\n\u003cli\u003eRigid hornwort\u003c\/li\u003e\n\u003cli\u003eCyrnddail\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThink about your pond water. Does it turn green in warm weather? Hornwort helps limit this by competing with algae. It also releases oxygen during the day, which supports fish and beneficial bacteria.\u003c\/p\u003e\n\u003ch3\u003eWhy add \u003cem\u003eCeratophyllum demersum\u003c\/em\u003e to your pond?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHardy and reliable in UK climates\u003c\/li\u003e\n\u003cli\u003eOne of the best oxygenating pond plants\u003c\/li\u003e\n\u003cli\u003eImproves water clarity and balance\u003c\/li\u003e\n\u003cli\u003eProvides shelter for fish, fry, and amphibians\u003c\/li\u003e\n\u003cli\u003eCreates breeding areas for wildlife\u003c\/li\u003e\n\u003cli\u003eReduces algae growth by absorbing nutrients\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis plant also offers shade below the water surface. This helps keep temperatures stable during hot spells. Dense growth protects fish from predators and strong sunlight.\u003c\/p\u003e\n\u003ch3\u003ePlanting and care tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSimply place stems in the water and allow them to float\u003c\/li\u003e\n\u003cli\u003eWorks in depths from 30 cm to over 1 m\u003c\/li\u003e\n\u003cli\u003eSuitable for new and established ponds\u003c\/li\u003e\n\u003cli\u003eThin regularly to prevent overcrowding\u003c\/li\u003e\n\u003cli\u003eBest introduced in spring or early summer\u003c\/li\u003e\n\u003cli\u003eCan be weighted if you want it to stay in one area\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYou can combine Hornwort with native floating and marginal plants to create a balanced pond. It pairs well with species such as \u003cem\u003eCallitriche\u003c\/em\u003e, \u003cem\u003ePotamogeton\u003c\/em\u003e, and \u003cem\u003eMyriophyllum\u003c\/em\u003e. Mixing growth habits supports more wildlife and improves resilience.\u003c\/p\u003e\n\u003cp\u003eIf you want an easy, low-maintenance oxygenator that works in many pond sizes, \u003cem\u003eCeratophyllum demersum\u003c\/em\u003e is a dependable option. It grows quickly, adapts to different water conditions, and helps keep your pond healthy throughout the year.\u003c\/p\u003e","brand":"Lincspplants","offers":[{"title":"1 Bunch","offer_id":51236381196568,"sku":"OX003-1","price":3.0,"currency_code":"GBP","in_stock":true},{"title":"2 Bunches","offer_id":51236381229336,"sku":"OX003-2","price":6.0,"currency_code":"GBP","in_stock":true},{"title":"3 Bunches","offer_id":51236381262104,"sku":"OX003-3","price":9.0,"currency_code":"GBP","in_stock":true},{"title":"5 Bunches","offer_id":51236381294872,"sku":"OX003-5","price":15.0,"currency_code":"GBP","in_stock":true},{"title":"10 Bunches","offer_id":51236381327640,"sku":"OX003-10","price":25.0,"currency_code":"GBP","in_stock":true},{"title":"25 Bunches","offer_id":51236381360408,"sku":"OX003-25","price":62.5,"currency_code":"GBP","in_stock":true},{"title":"50 Bunches","offer_id":51236381393176,"sku":"OX003-50","price":125.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/2075\/9064\/files\/ceratophyllum2_b9e5534c-34d9-462c-85ce-274194cdc3c6.jpg?v=1765308993","url":"https:\/\/sarracenia.house\/products\/ceratophyllum-hornwort-1-50-bunches-oxygenating-pond-water-plants-weighted-ox003","provider":"Sarracenia House","version":"1.0","type":"link"}