{"product_id":"potamogeton-crispus-oxygenating-pond-plant-ox017","title":"Potamogeton crispus (Curled Pondweed)","description":"\u003cp\u003e\u003cem\u003ePotamogeton crispus\u003c\/em\u003e, commonly known as Curled Pondweed or Curly Pondweed, is a hardy submerged aquatic perennial found in ponds, canals, and slow-moving water across the UK. It is valued for its ability to improve water quality and support wildlife.\u003c\/p\u003e\n\u003cp\u003eThis species produces narrow, lance-shaped to oblong leaves that grow entirely below the surface. As the plant matures, the leaf edges become strongly wavy or curled. This gives a textured appearance and helps create shelter within the water column.\u003c\/p\u003e\n\u003cp\u003eUnlike many aquatic plants, \u003cem\u003ePotamogeton crispus\u003c\/em\u003e does not produce floating leaves. In summer, it forms small reddish flowers that rise slightly above the water. These are subtle but play a role in reproduction and biodiversity.\u003c\/p\u003e\n\u003cp\u003eYou may also see this plant sold under other names:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCurly pondweed\u003c\/li\u003e\n\u003cli\u003eWater calthrops\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you want to support a stable pond, this species is a practical addition. It absorbs nutrients that would otherwise feed algae. It also releases oxygen during daylight, which benefits fish and beneficial microbes.\u003c\/p\u003e\n\u003cp\u003eThink about your pond structure. Do you have enough underwater cover? Dense submerged growth helps fish hide and breed. It also provides habitat for invertebrates and amphibians.\u003c\/p\u003e\n\u003ch3\u003eWhy grow \u003cem\u003ePotamogeton crispus\u003c\/em\u003e in your pond?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNative and well suited to UK climates\u003c\/li\u003e\n\u003cli\u003eReliable oxygenating plant\u003c\/li\u003e\n\u003cli\u003eHelps maintain clear and balanced water\u003c\/li\u003e\n\u003cli\u003eProvides shelter and spawning sites\u003c\/li\u003e\n\u003cli\u003eSupports frogs, newts, and insects\u003c\/li\u003e\n\u003cli\u003eSuitable for wildlife and natural ponds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis plant is known for strong early-season growth. It often develops before many other submerged species. This early activity helps stabilise ponds and reduces spring algae blooms.\u003c\/p\u003e\n\u003ch3\u003ePlanting and care tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePlant in still or slow-moving water\u003c\/li\u003e\n\u003cli\u003eSuitable for depths from 20 cm to over 1 m\u003c\/li\u003e\n\u003cli\u003eAnchor stems or rhizomes in aquatic soil or gravel\u003c\/li\u003e\n\u003cli\u003eAllow some space for spread\u003c\/li\u003e\n\u003cli\u003eBest introduced in spring or autumn\u003c\/li\u003e\n\u003cli\u003eThin if growth becomes dense\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis species can form dense patches in nutrient-rich ponds. Regular thinning helps maintain open water and balance. Removed material can be composted.\u003c\/p\u003e\n\u003cp\u003eCombine Curled Pondweed with floating plants and other native oxygenators such as \u003cem\u003eMyriophyllum\u003c\/em\u003e and \u003cem\u003eCallitriche\u003c\/em\u003e to create a layered habitat. This supports more wildlife and improves resilience.\u003c\/p\u003e\n\u003cp\u003eIf you want a dependable, low-maintenance oxygenator that works in many pond types, \u003cem\u003ePotamogeton crispus\u003c\/em\u003e is a strong choice. It supports biodiversity and helps keep your pond healthy throughout the year.\u003c\/p\u003e","brand":"Lincspplants","offers":[{"title":"Default Title","offer_id":51236357374232,"sku":"BJ-KTMD-8ZZF","price":6.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/2075\/9064\/files\/Potamogeton-crispus-Oxygenating-Pond-Plant-B01H0WZ36G.jpg?v=1765308979","url":"https:\/\/sarracenia.house\/products\/potamogeton-crispus-oxygenating-pond-plant-ox017","provider":"Sarracenia House","version":"1.0","type":"link"}