Botanically speaking, the sunflower family includes annual types that live for a single season and perennials that come back year after year. But the classic, sturdy-stemmed, big-bloomed sunflowers that elevate farm-to-table bouquets are annuals with the botanical name Helianthus annuus. Say "sunflower" to most people, and annuals are the ones that come to mind. Their perennial relatives are pretty, but they don't deliver the big, gorgeous blooms that classic annual sunflowers do.

Sunflowers come in colors and sizes to suit every gardener and garden. Besides the timeless golden flowers, sunflower colors span the spectrum from pale ivory to russet red and nearly black, with centers that range from deep, dark chocolate to mustard yellow.

Some sunflower types offer one flower on each strong stem in a defined bloom time. Others offer branched stems with multiple blooms and extended bloom times. Depending on your tastes, you can choose from dwarf sunflowers ideal for urban balconies to giant sunflowers that tower 15 feet or more. In general, the taller the stalk, the bigger the flower on top.

If you're growing for stunning bouquets, pollen-free types won't drop pollen on your table. (And allergy sufferers in the family will appreciate them, too.) If you're looking to attract pollinators to your garden, only pollen-producing types will do. Not all modern sunflower varieties produce seeds, so if nurturing winter birds is your goal, choose varieties accordingly. And don't worry about kids, cats or dogs; annual sunflowers aren't toxic.1