70-90 day maturity. Hibiscus sabdariffa. Asian Sour Leaf Roselle Seeds. Non-GMO, Cool-season perennial heirloom. This unique perennial can be grown as an annual in areas where it will not survive the winters. Sour Leaf Roselle is heat tolerant and typically cultivated in tropical and subtropical regions. The leaves, calyces, and flowers are all edible and flavorful. The Burmese call it 'chin baung ywat,' which translates to 'sour leaf.' Roselle can be an attractive container specimen in pots greater than 6 inches deep and wide. ~ 720 seeds / oz.