{"product_id":"common-alder-alnus-glutinosa","title":"Common Alder (alnus glutinosa)","description":"\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHardiness: Fully hardy throughout the UK, tolerant to -20°C or lower; native species, highly adaptable to British climates including coastal and exposed sites.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSite: Full sun for best growth; tolerates partial shade; fast-growing conical tree (up to 25m tall, 8-10m spread) ideal for wet woodlands, riverbanks, windbreaks, wildlife gardens, or large spaces; special bacteria \u003ca href=\"https:\/\/youtu.be\/tYkeeAVXD78?si=E9IqdMFvpzE1VLV0\" target=\"_blank\"\u003eInside\u003c\/a\u003e root nodules fix nitrogen from the air allowing the roots to improve the soil.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSoil: Thrives in moist to wet, poorly drained or waterlogged conditions; tolerates poor, heavy clay, chalk, loam, sand, acid to alkaline pH; avoid very dry sites.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePlanting time: Bare-root November to March (dormant season); container-grown ideally autumn or spring.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePlanting method: Dig a wide hole (twice root spread width); incorporate organic matter if soil is poor; plant at the same depth as in the nursery (soil mark on stem); stake young trees; mulch base and water thoroughly.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWatering: Water regularly during the first 1–2 years, especially in dry periods; once established, highly tolerant of wet conditions and moderate drought.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaintenance: Low; no regular feeding needed (nitrogen-fixing); minimal pruning.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cumbria Tree Growers Ltd","offers":[{"title":"20-40cm","offer_id":58451069796696,"sku":null,"price":0.84,"currency_code":"GBP","in_stock":true},{"title":"40-60cm","offer_id":58451069829464,"sku":null,"price":1.08,"currency_code":"GBP","in_stock":true},{"title":"90-120cm","offer_id":58451069862232,"sku":null,"price":2.28,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/4879\/4968\/files\/IMG_7364.jpg?v=1789987726","url":"https:\/\/www.treegrowers.co.uk\/products\/common-alder-alnus-glutinosa","provider":"Cumbria Tree Growers Ltd","version":"1.0","type":"link"}