{"product_id":"rg-lobelia-windowbox-blue-heaven","title":"Blue Heaven Windowbox Lobelia Flower Seeds","description":"\u003cp\u003eBlue Heaven spills a cool shower of cerulean over every edge it reaches. Masses of tiny 3\/4-inch flowers ride on trailing stems, turning a hanging basket, window box, patio pot, or pathway border into a continuous ribbon of blue.\u003c\/p\u003e\u003cp\u003eThis weather-resistant lobelia grows only 6–7 inches high and flowers through changing conditions. It enjoys part shade, yet it also performs in sun where summers are moderate, making its graceful habit unusually adaptable.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBotanical name:\u003c\/strong\u003e \u003cem\u003eLobelia erinus\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCultivar:\u003c\/strong\u003e Blue Heaven\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLife cycle:\u003c\/strong\u003e Tender annual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExposure:\u003c\/strong\u003e Sun to part shade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSowing:\u003c\/strong\u003e Start indoors about 6 weeks before the last frost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanting depth:\u003c\/strong\u003e Surface sow; do not cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGermination:\u003c\/strong\u003e 14–21 days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMature height:\u003c\/strong\u003e 6–7 in., with a trailing habit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal spacing:\u003c\/strong\u003e 5 in., transplanting small clusters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproximate seed count:\u003c\/strong\u003e 600–800\u003c\/li\u003e\n\u003c\/ul\u003e\u003c!-- seed-starting-help:2026-08-23 --\u003e\u003caside aria-label=\"Seed-starting help\" style=\"margin:1.25rem 0;padding:.9rem 1.05rem;border-left:4px solid #8467a5;background:#f8f5ef;\"\u003e\u003cp\u003e\u003cstrong\u003eSeed-starting help:\u003c\/strong\u003e Tiny seeds, large opinions. This variety begins with a little backstage work. Review \u003ca href=\"\/blogs\/news\/how-to-start-flower-seeds-indoors\"\u003ehow to start flower seeds indoors\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/when-to-start-flower-seeds\"\u003ewhen to begin in your climate\u003c\/a\u003e.\u003c\/p\u003e\u003c\/aside\u003e\u003cp\u003eKeep baskets evenly watered and shear fading flowers lightly to renew the cascade. Find more container-ready varieties in our \u003ca href=\"\/collections\/flower-seed-packets\"\u003eflower seed packets\u003c\/a\u003e.\u003c\/p\u003e","brand":"Renee's Garden","offers":[{"title":"Default Title","offer_id":44028152283195,"sku":"SWF5964","price":3.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/3455\/6475\/files\/renee-s-garden-lobelia-windowbox-blue-heaven.jpg?v=1787449495","url":"https:\/\/www.anniesannuals.com\/products\/rg-lobelia-windowbox-blue-heaven","provider":"Annie's Annuals \u0026 Perennials","version":"1.0","type":"link"}