7 Flowers to Plant in October for a Burst of Color in Fall and Beyond

Goldenrod

Goldenrod (Solidago) adds a spray of yellow color to your yard that's perfect for fall, and it's relatively easy to grow. Landscape designer Galen Gates says their blooms are like a "firework explosion," noting that they can range in size from 6 inches to 4 feet, depending on growing conditions.

• Zone: 2 to 8
• Size: 1.5 to 5 feet tall x 1 to 3 feet wide
• Care requirements: Full to partial sun, well-drained soil

Aster

Asters are available in a kaleidoscope of colors, from white and pale blue to lavender and pink. Gates advises staking particularly large varieties. Some are so sturdy that they can even be used for garden borders, supporting other perennials.

• Zones: 3 to 9
• Size: 12 to 72 inches tall x 12 to 48 inches wide
• Care requirements: Full sun to part shade; moist, well-drained soil

Mums

Mums (Chrysanthemum) are the quintessential fall flower. It's not too late to plant them to add a splash of color to your garden, either—with the right care, they'll even return next year.

• Zones: 5 to 9 for garden mums; grown as an annual in zones 2 to 11
• Size: Approximately 2 feet tall x 2 feet wide
• Care requirements: Full sun; well-drained soil

Peonies

Planting peonies (Paeonia) in the fall is an investment in the future of your garden come spring.

"The cool autumn soil allows their roots to establish before winter without the stress of summer heat," says Hannah Howland, perennials manager at Plants Unlimited. "When planting, set the root divisions so the eyes sit no more than 1 to 2 inches below the soil."

• Zones: 3 to 8
• Size: 3 feet tall x 4 feet wide
• Care requirements: Full sun to part shade; rich, well-drained soil

Bearded Iris

Bearded iris (Iris germanica) adds both color and texture to your garden—and the cool October soil will give its rhizomes time to settle before winter.

Howland advises planting the rhizomes so that they're just at or slightly below the soil's surface: "Burying them too deeply can cause rot and reduce flowering," she notes.

• Zones: 3 to 9
• Size: 1 to 4 feet tall x 1 to 2 feet wide
• Care requirements: Full sun; rich, well-drained soil

Camassia

Camassia need a period of cold dormancy to grow, so October is the perfect time to plant them. Howland recommends planting them about 4 to 6 inches deep in the soil. It can tolerate heavier, damper soil, so if you're garden has some tricky spots, it's a good choice.

• Zones: 4 to 8
• Size: 1 to 4 feet tall x 1 to 2 feet wide
• Care requirements: Well-draining soil (but can tolerate damper soil, full sun to partial shade)

Bluestars

Bluestar forms "attractive clumps with starry blue spring flowers," says Howland. She recommends planting these elegant blooms in October, when the cooler air and soil will allow the plant to establish itself before winter. This will help reduce transplant stress.

• Zones: 5 to 8
• Size: 3 feet tall x 4 feet wide
• Care requirements: Full sun to part shade; moist, well-drained soil