7 Perennials That Bloom Multiple Times a Year for Beautiful Flowers in Every Season

Geranium

Who doesn't love geraniums (Pelargonium)? These cup-shaped flowers can be pink, purple, or white. Hannah Howland, perennials manager at Plants Unlimited, notes that her personal favorite is the periwinkle Roxanne variety.

"While not invasive, they do grow big fast!" she says. "The first time I planted one, I was shocked that it was 3 feet by 3 feet by the end of the first season."

If yours is getting too big, you can always cut it back. Geraniums bloom in the spring and will rebloom intermittently throughout the summer and fall.

• Zones: 3 to 9
• Size: 4 to 48 inches tall x 6 to 36 inches wide
• Care requirements: Partial to full sun and moist, well-draining soil

Catmint

Your feline friends will love catmint (Nepeta)—and so will your garden. These fragrant plants add beautiful, blue-purple flowers to a landscape, along with soft, subtle foliage.

"I would recommend sticking to the smaller varieties, like Junior Walker, to prevent flopping," says Howland. "It's easily dividable—I have many in my garden that came from the same plant!"

Catmint blooms in late spring and will rebloom in summer and fall with regular trimming.

• Zones: 3 to 8
• Size: 12 to 24 inches tall; width varies
• Care requirements: Full sun to partial shade with well-draining soil

Phlox

The Fashionably Early Crystal variety of phlox will flower almost continuously from late spring through summer. It has white petals with a subtle, light purple eye. "It's disease-free," adds horticulturist Kelly Norris. "An all-around showstopper."

• Zones: 4 to 8
• Size: 28 to 32 inches tall x 26 to 30 inches wide
• Care requirements: Full sun, clay and even wet soils, which can dry out between rains

White Goldenrod

White goldenrod (Solidago bicolor) is "tough as nails in dry soils, particularly sand," says Norris. He describes it as an underrated Midwestern native, one that has a long bloom season beginning in early summer. Its beautiful white flowers make for an elegant addition to any yard.

• Zones: 3 to 9
• Size: 2 to 3 feet tall x 1 to 2 feet wide
• Care requirements: Full or partial sun, sandy soil

Dianthus

The Firewitch variety of dianthus is an "old-fashioned, low-growing perennial with silvery-blue foliage, and topped with vivid pink flowers," says Shauna Moore, director of horticulture at the Brooklyn Botanic Garden.

It blooms in late May, and with the right shearing or deadheading, it will bloom again. It's also very fragrant, with a clove-like aroma.

• Zones: 3 to 9
• Size: 8 inches tall x 12 inches wide
• Care requirements: Full sun, well-draining soil

Reblooming Iris

The aptly named I'm Back iris has lush purple blooms that emerge in late spring, and then blossom once again in late summer or early fall.

"Once a friend thought there was something wrong with my iris, because it was blooming in the fall, and was happily surprised to learn about this modern hybridization," says Moore.

She also notes that it's very fragrant; its dark flowers make for a wonderful garden border.

• Zones: 4 to 9
• Size: 36 inches tall
• Care requirements: Full sun, well-draining soil

Beardtongue

Hummingbirds will flock to beardtongue, (Penstemon) a plant with tall, tubular flowers in shades of red, purple, or pink. Howland notes that it blooms from late spring to early summer, and will possibly rebloom in late summer if it's cut back. Doing so can also improve air circulation and prevent disease.

• Zones: 3 to 8
• Mature size: 2 to 5 feet tall x 1 to 2 feet wide
• Care requirements: Full sun and well-drained soil