The Best Rose Companion Plants for Beautiful Blooms All Season

Chive

Members of the allium family have a distinct onion-like fragrance, which tends to discourage aphids because they dislike strong odors. You probably don’t have a reason to plant onions or garlic near your rose bushes, but chives make a nice companion for roses. They produce fantastic purple globe-shaped blossoms, and they’re so hardy and prolific that you’ll hardly need to do any work once they're established. The chive blossoms will add a fun dash of color alongside your rose bushes, and if you keep trimming them, they’ll keep blooming—giving you a delicious harvest while keeping aphids away from your roses.

• Zones: 3 to 9
• Mature size: 12 to 18 inches tall x 12 to 18 inches wide
• Care requirements: Rich, well-drained soil and full sun

Allium (Ornamental Onion)

In addition to chives, you can plant alliums (ornamental onions), which offer a different type of bloom. These alliums aren’t used in cooking, but they sport big showy blossoms and attract pollinators very well. Eva Monheim, author, speaker, and garden coach, recommends planting ornamental onions at the base of roses—they can add visual diversity and help protect the bare lower branches of some rose bushes.

• Zones: 4 to 10
• Mature size: 12 to 36 inches tall, 12 inches wide
• Care requirements: Rich, well-drained soil and full sun

Marigold

Animals that are "browsers"—that is, they enjoy eating bark, twigs, or rigid stalks—can pose a real threat to your rose canes. The most common animal pests in garden settings are rabbits and deer. Marigolds make a nice companion plant for this reason—they tend to repel deer and rabbits, plus they boast charming blossoms that are easy to grow.

Marigolds can also discourage insects. "Marigolds are used around the base of roses to repel insects and nematodes," says Monheim. "Their strong scent is a deterrent that helps to reduce the use of sprays, especially if you are trying to use a natural approach to gardening." There’s no shortage of marigold varieties, so pick something that nicely complements the color of your roses. 

• Zones: 2 to 11 
• Mature size: 6 to 12 inches tall x 6 to 12 inches wide
• Care requirements: Full sun; moderate watering

Related Stories

Martha Just Planted 40 of Her Gorgeous New Hybrid Tea Roses—See the Namesake Flowers Here

11 Fast-Growing Climbing Roses for a Lush, Cottage-Garden Look

Nasturtium

Nasturtiums spread easily with attractive foliage (the leaves look a little like cucumber leaves) and lovely flowers. But they offer other benefits to your roses. "A good trap crop for roses would be nasturtiums as they attract aphids," says Kathy Jentz, author of Groundcover Revolution and host of the GardenDC Podcast. "You can plant a row of nasturtium near your roses in a hot, sunny spot."

• Zones: 2 to 9
• Mature size: 18 inches tall x 24 inches wide.
• Care requirements: Full sun; well-drained (even sandy) soil

Bee Balm

Are you looking for a splash of color at the same height as your roses? You almost can’t go wrong with something like bee balm—the colors of the blossoms are intense, the straight stalks of the plant pair well with the shape of rose bushes, and bee balm is a prime pollinator attractor and attracts pests, as well.

• Zones: 3 to 9
• Mature size: 36 inches tall x 8 inches wide
• Care requirements: Full sun; plenty of water; well-drained soil

Sweet Woodruff

"There are numerous plants that I would recommend for planting at the base of roses to create a more diverse visual for a rose garden," says Monheim. "Many herbs are good plants for roses." One of the herbs she recommends is sweet woodruff—a dainty groundcover with tiny flowers. It can handle the shade of your roses while filling in the ground around them nicely. Sweet woodruff spreads quickly, so be careful not to let it get away from you.

• Zones: 4 to 9
• Mature size: 6 to 12 inches tall x 12 to 24 inches wide, though it can spread much wider
• Care requirements: Shade to partial shade; moist to dry ground

Calamintha

"Catmint is often used at the base of roses, but another top choice for planting at the base of roses is Calamintha (Calamintha nepeta)," says Jentz. "It resembles catmint and is also in the mint family." Calamintha is attractive and bushy, with many small blossoms, and is a great selection for filling in foliage at ground level. It can also be used to help repel deer, which your roses will appreciate.

• Zones: 4 to 7
• Mature size: 24 inches tall x 24 inches wide
• Care requirements: Full sun; well-drained soil

Lavender

It can be fun to find flowers that provide a pleasing visual mix with your roses, and lavender is a popular choice for this very purpose. It repels insect pests, and the purple spiky blossoms are a sight to enjoy.

• Zones: 5 to 9
• Mature size: 12 to 30 inches tall x 24 to 36 inches wide
• Care requirements: Well-drained soil; full sun

Coreopsis

Let’s be honest—some rose varieties require a bit of care and attention, so it would be nice if some of your complementary flowers could take care of themselves. Coreopsis certainly fits the bill, and they bloom for a long period, adding color to the area when your roses aren’t in bloom. Better yet, coreopsis and roses don't compete for sunlight, soil nutrients, or space.

• Zones: 4 to 9
• Mature size: 24 inches tall by 24 inches wide
• Care requirements: full sun; can handle many soil and moisture types

'Golden Fleece' Goldenrod

This is an absolutely beautiful autumn flower with long yellow rods of truly golden blossoms. 'Golden Fleece' has a more domesticated and refined look than wild goldenrod and is a great choice for garden borders. Goldenrod is famous for attracting all sorts of desirable bugs to your garden, like butterflies, bees, beneficial wasps and flies, and soldier beetles.

• Zones: 4 to 8
• Mature size: 18 to 24 inches tall x 18 to 24 inches wide
• Care requirements: Full sun; moist soil

Dill

Dill is an interesting and attractive herb that grows tall and produces massive blossoms that look a little like fireworks. Besides its aesthetic appearance and usefulness as an herb, dill also helps deter aphids from the garden—always a threat to roses.

• Zones: Perennial in zones 8 to 10; annual in zones 3 to 7
• Mature size: 2 to 5 feet tall
• Care requirements: Full sun; well-drained soil