{"id":48179,"date":"2013-12-17T23:47:50","date_gmt":"2013-12-18T04:47:50","guid":{"rendered":"https:\/\/www.lasocietedesplantes.com\/p\/centauree-emperor-william\/"},"modified":"2026-06-20T15:19:31","modified_gmt":"2026-06-20T19:19:31","slug":"centauree-emperor-william","status":"publish","type":"product","link":"https:\/\/www.lasocietedesplantes.com\/en\/produits\/centauree-emperor-william\/","title":{"rendered":"Emperor William organic knapweed"},"content":{"rendered":"<p>Sow on site in spring as soon as the soil can be worked, 5 cm apart, thin to 15 cm for optimum development. Germination: 7-12 days at 15\u00b0C-18\u00b0C. Likes cool nights.<\/p>\n<hr \/>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p style=\"text-align: left;\"><strong>Centaurea cyanus, Asteraceae<\/strong><\/p>\n<p style=\"text-align: left;\">blueberry, bell-breaker<\/p>\n<p style=\"text-align: left;\">Knapweed 'Emperor William' is the last of the old cultivars of the splendid navy-blue single-petaled knapweed, close to the wild species. Knapweed flowers are edible and medicinal. They are used mainly for eye inflammation and irritation, but also to relieve bronchial congestion and coughs. An easy-to-grow annual that tolerates drought once established. 60-90cm.<\/p>\n<p style=\"text-align: left;\">about 100-125 seeds<\/p>\n<p>Seeds certified organic by <a href=\"http:\/\/www.quebecvrai.org\" target=\"_blank\" rel=\"noopener\">Qu\u00e9bec Vrai,<\/a>produced here at LA SOCI\u00c9T\u00c9 DES PLANTES, Kamouraska, Qc<\/p>","protected":false},"featured_media":48180,"template":"","meta":[],"product_brand":[],"product_cat":[874,920,193,863,186,865,187,332],"product_tag":[297,194,216,225,190,231,298],"class_list":["post-48179","product","type-product","status-publish","has-post-thumbnail","product_cat-centaurees","product_cat-centaurees-medicinales-annuelles","product_cat-medicinales","product_cat-medicinales-annuelles","product_cat-ornementales","product_cat-ornementales-annuelles","product_cat-plantes-a-fleurs","product_cat-semences-biologique","product_tag-annuelle","product_tag-asteracees","product_tag-bleuviolet","product_tag-fleurs-comestibles","product_tag-fleurs-coupees","product_tag-pollinisateurs","product_tag-se-resseme","sales-flash-overlay","woocommerce-text-align-center","woocommerce-image-align-center","do-quantity-buttons","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"booking_location":null,"booking_location_type":null,"booking_duration":null,"booking_duration_unit":null,"booking_buffer":null,"booking_cost":null,"booking_resources":null,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - 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