{"product_id":"eryngium-x-olivierianum-pen-blue","title":"Eryngium x olivierianum 'Pen Blue'","description":"\u003cp\u003eA striking architectural presence for the mid-border, this vibrant sea holly is prized for the intensity of its colouring, which saturates not just the flower heads but the upper stems in a vivid, metallic blue.\u003c\/p\u003e\n\u003cp\u003eUnlike taller, floppier varieties, this compact selection reaches a manageable height, holding its thimble-like flower cones on stiff, branched stems that require no staking. Each flower head is surrounded by a distinctive 'ruff' of long, spiny bracts that catch the light beautifully, contrasting sharply with the mound of deeply divided, dark green foliage below.\u003c\/p\u003e\n\u003cp\u003eIt is a magnet for bees and butterflies in high summer and stands up well to dry conditions, making it an excellent candidate for gravel gardens or south-facing borders. While it thrives in full sun, the drainage must be sharp; it will not tolerate sitting in cold, waterlogged soil over winter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBarnsdale tip:\u003c\/strong\u003e These plants put down a deep taproot, which makes them very drought tolerant but also means they resent being moved. Choose your planting spot carefully, as they are best left undisturbed once established to form a substantial clump.\u003c\/p\u003e\n\u003cp\u003eSummer flowering. Drought tolerant. Best in a sunny and well-drained position. Height \u0026amp; spread: 60cm x 60cm (24\" x 24\").\u003c\/p\u003e","brand":"Barnsdale Gardens","offers":[{"title":"2 litre","offer_id":58331565916534,"sku":null,"price":15.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0269\/8271\/1357\/files\/eryngium-oliverianum-pen-blue-01.jpg?v=1784900207","url":"https:\/\/shop.barnsdalegardens.co.uk\/products\/eryngium-x-olivierianum-pen-blue","provider":"Barnsdale Gardens","version":"1.0","type":"link"}