{"product_id":"ageratum-city-blue","title":"Ageratum houstonianum 'City Blue'","description":"\u003cdiv id=\"gmail-tw-container\" class=\"gmail-\" style=\"text-align: left;\"\u003e\n\u003cdiv id=\"gmail-tw-ob\" class=\"gmail-tw-src-ltr\"\u003e\n\u003cdiv class=\"gmail-oSioSc\"\u003e\n\u003cdiv id=\"gmail-tw-target\" class=\"gmail-m1hag\"\u003e\n\u003cdiv id=\"gmail-kAz1tf\" class=\"gmail-g9WsWb gmail-PZPZlf\"\u003e\n\u003cdiv tabindex=\"0\"\u003e\n\u003cdiv id=\"gmail-tw-target\" class=\"gmail-m1hag\"\u003e\n\u003cdiv id=\"gmail-kAz1tf\" class=\"gmail-g9WsWb gmail-PZPZlf\"\u003e\n\u003cdiv id=\"gmail-tw-target\" class=\"gmail-m1hag\"\u003e\n\u003cp class=\"gmail-g9WsWb gmail-PZPZlf\"\u003eAgeratum houstonianum 'City Blue' is a fluffy blue, frost-tender perennial grown as an annual in most climates.\u003c\/p\u003e\n\u003cp class=\"gmail-g9WsWb gmail-PZPZlf\"\u003eThe flowers take the form of large fluffy clusters in a soft, powdery light mauve-blue.\u003c\/p\u003e\n\u003cp class=\"gmail-g9WsWb gmail-PZPZlf\"\u003eThe leaves are hairy, toothed, and oval in shape, sometimes heart-shaped at the base, with a soft green hue.\u003c\/p\u003e\n\u003cp class=\"gmail-g9WsWb gmail-PZPZlf\"\u003eThe sturdy stems of this generous variety make it ideal for adding height to borders or for creating long-lasting bouquets.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv data-test-render-count=\"1\"\u003e\n\u003cdiv class=\"group\"\u003e\n\u003cdiv class=\"contents\"\u003e\n\u003cdiv data-is-streaming=\"false\" class=\"group relative relative pb-3\"\u003e\n\u003cdiv class=\"font-claude-response relative leading-[1.65rem] [\u0026amp;_pre\u0026gt;div]:bg-bg-000\/50 [\u0026amp;_pre\u0026gt;div]:border-0.5 [\u0026amp;_pre\u0026gt;div]:border-border-400 [\u0026amp;_.ignore-pre-bg\u0026gt;div]:bg-transparent [\u0026amp;_.standard-markdown_:is(p,blockquote,h1,h2,h3,h4,h5,h6)]:pl-2 [\u0026amp;_.standard-markdown_:is(p,blockquote,ul,ol,h1,h2,h3,h4,h5,h6)]:pr-8 [\u0026amp;_.progressive-markdown_:is(p,blockquote,h1,h2,h3,h4,h5,h6)]:pl-2 [\u0026amp;_.progressive-markdown_:is(p,blockquote,ul,ol,h1,h2,h3,h4,h5,h6)]:pr-8\"\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3 standard-markdown\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFrom April through early autumn, flowers bloom continuously - deadheading helps the plant to continue to produce the pompom flowers. \u003c\/p\u003e\n\u003cp id=\"gmail-kAz1tf\" class=\"gmail-g9WsWb gmail-PZPZlf\"\u003e\u003cspan\u003eNOTA BENE: Ageratum \u003c\/span\u003e\u003cem\u003eis not reliably perennial in most European gardens\u003c\/em\u003e\u003cspan\u003e. It is botanically classified as a tender perennial— \u003c\/span\u003e\u003cspan\u003emeaning it survives year-round only where winter temperatures never drop below –1°C.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"gmail-g9WsWb gmail-PZPZlf\"\u003e\u003cspan\u003eThis distinction isn’t semantic: mislabeling ageratum as “perennial” leads gardeners to skip overwintering steps, abandon succession planting, or misdiagnose winter dieback as disease. True perennials regrow from persistent roots or crowns each spring; ageratum lacks cold-hardy rootstock and dies completely when exposed to sustained freezing. Yet its long bloom window (14–20 weeks), heat tolerance, and pollinator appeal make it indispensable—even if you replant it every year.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Ageratum","offers":[{"title":"Default Title","offer_id":57285854986613,"sku":"pda686","price":4.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/7841\/5733\/files\/AgeratumCityBlue.jpg?v=1781244093","url":"https:\/\/www.plantdavenir.com\/en\/products\/ageratum-city-blue","provider":"plant d'Avenir","version":"1.0","type":"link"}