50-60 Days to maturity. Calendula officinalis. Solar Flashback Mix Calendula Seeds. Non-GMO, Organic, Annual. Solar Flashback Mix Calendula flowers are a distinctive new family of flash calendulas, selected to highlight the contrast between bright light yellows, pinks, and solid red or maroon. This is a special treat for those who love calendula, but want a rest from orange. Edible flower petals. Approximately 2,000 seeds/oz.