Rich soil, full sun, and careful watering—that’s all it takes to grow dazzling zinnias that bloom all summer. And while the rest of the garden fizzles in the summer heat, zinnias thrive. You can show off masses of garden color around the house and display fresh-cut bouquets indoors. Start with seeds for the widest variety of plants. Sow them directly in the soil and see flowers within a few months. For faster results, transplant garden-ready seedlings in late spring. Rely on diverse forms—from compact charmers to tall stars (8 to 48 inches tall)—to brighten beds and containers.
Looking for a colorful edging plant? Need a companion for roses? The assorted shapes and sizes of zinnias make them the must-have plant for any sunny spot.
Thin To Win
For big, abundant blooms, thin out crowded seedlings, leaving 6 to 12 inches between plants (depending on cultivar). Spacing gives zinnias room to bloom and helps prevent mildew.
Enjoy zinnias indoors, too. They make great cut flowers that can last in bouquets up to two weeks. Strip the leaves when cutting stems, and be sure to replace the water each day.
Zinnias are a favorite among butterflies. The winged beauties love their bright hues and easy-to-reach blooms.
Pick The Perfect Zinnia
Don’t be shy about snipping—the more you cut, the more they bloom. Pruning spent blossoms, or deadheading, keeps plants growing strong and in full flower through the season.
Heirloom treasures grown since the 18th century display dainty blooms with simple sun-ray petals.
These regal, long-stem zinnias are among the best for cutting and are disease-resistant.
A must-have for beautiful bouquets, chartreuse bloomers shine even in partial shade on 30-inch-tall plants.
Vibrant colors radiate to the petal tips, changing hues with maturity.
These robust zinnias resemble dahlias. Huge blooms on 4-foot stems make them garden sentinels.
Perky zinnias strut their stuff with mounds of candy-stripe petals in scarlet, orange, and yellow.
With large flowers and 30-inch stems, massed zinnias add vivid swaths of color to summer gardens.
Short plants with big blooms make a dazzling first impression. Try them in containers or along driveways and walkways.