56-63 days. Growing Janie Series French marigold seeds this season is an effortless and award-winning way to dash some summer into your garden. Janie Series seeds are easy to grow from seed and, as a native to the arid Mexican climate, ideal for dry, southwestern gardens while even surprising some cooler climates. Janie Series grows bold and dazzling marigolds promising butterflies and important pollinators to the garden all season long. Janie Series debuted as an All-American Selections Flower Winner for "golden-orange color" and "continuous blooming."