No annual is more cheerful or easier to grow than the marigold. These flowers are the spendthrifts among annuals, bringing a wealth of gold, copper, and brass into our summer and autumn gardens. African marigolds are taller and more tolerant of hot, dry conditions than French marigolds. They also have larger flowers that can be up to 6" in diametre. If deadheaded regularly, African marigold plants will usually produce many large blooms. They grow best in full sun and actually seem to prefer poor soil.
Just as you'd expect from something called French, these marigolds are the fancy ones. French marigolds tend to be frilly and some boast a distinctive "crested eye." They grow roughly 8-12" high with a chic, neat, little growth habit and elegant dark green foliage. They do best in full sun with moist, well-drained soil and will flower all summer long.