Phlox Companion Plants: A Comprehensive Guide

Are you looking for ways to enhance the beauty of your garden? Look no further than phlox and its companion plants. Phlox is a popular flowering plant that comes in various colors, including pink, purple, white, and red. It’s easy to grow and care for, making it an excellent choice for novice and experienced gardeners alike. But did you know that planting phlox with other specific plants can make your garden even more stunning? In this guide, we’ll take a closer look at some of the best phlox companion plants.

The Best Companion Plants for Phlox

1. Astilbe

Astilbe is a beautiful companion plant for phlox because it has a similar bloom time and requires the same growing conditions. Both plants prefer partial shade and moist, well-drained soil. Astilbe's feathery blooms come in shades of pink, white, and red, and they complement phlox's vibrant flowers perfectly. Plant astilbe and phlox together in a shady area of your garden for a stunning display of color.

How to Care for Astilbe and Phlox Together

To care for astilbe and phlox together, make sure they both receive adequate water and fertilization. Water them deeply once per week, or more often in hot weather. Fertilize them in the spring with a balanced fertilizer. Deadhead spent blooms to encourage more flowers to grow.

2. Salvia

Salvia is another excellent companion plant for phlox because it also prefers full sun to partial shade and well-drained soil. Salvia's spiky blooms come in shades of blue, purple, pink, and red, and they contrast nicely with phlox's softer, round blooms. Plant salvia and phlox together in a sunny spot in your garden for a stunning display of color.

How to Care for Salvia and Phlox Together

To care for salvia and phlox together, make sure they both receive adequate water and fertilization. Water them deeply once per week, or more often in hot weather. Fertilize them in the spring with a balanced fertilizer. Deadhead spent blooms to encourage more flowers to grow.

3. Yarrow

Yarrow is a tough and hardy companion plant for phlox because it can tolerate a wide range of growing conditions. Yarrow's feathery foliage and flat-topped blooms come in shades of white, yellow, pink, and red, and they complement phlox's vibrant flowers nicely. Plant yarrow and phlox together in a sunny spot in your garden for a beautiful and low-maintenance display of color.

How to Care for Yarrow and Phlox Together

To care for yarrow and phlox together, make sure they both receive adequate water and fertilization. Water them deeply once per week, or more often in hot weather. Fertilize them in the spring with a balanced fertilizer. Deadhead spent blooms to encourage more flowers to grow.

4. Coneflower

Coneflower is a popular companion plant for phlox because it's easy to grow and care for, just like phlox. Coneflower's daisy-like blooms come in shades of pink, purple, white, and yellow, and they complement phlox's vibrant colors nicely. Plant coneflower and phlox together in a sunny spot in your garden for a stunning display of color.

How to Care for Coneflower and Phlox Together

To care for coneflower and phlox together, make sure they both receive adequate water and fertilization. Water them deeply once per week, or more often in hot weather. Fertilize them in the spring with a balanced fertilizer. Deadhead spent blooms to encourage more flowers to grow.

5. Coral Bells

Coral bells is a unique and eye-catching companion plant for phlox because it has colorful foliage that contrasts nicely with phlox's vibrant flowers. Coral bells' bell-shaped blooms come in shades of pink, red, and white, and they complement phlox's colors perfectly. Plant coral bells and phlox together in a shady area of your garden for a beautiful and unique display of color.

How to Care for Coral Bells and Phlox Together

To care for coral bells and phlox together, make sure they both receive adequate water and fertilization. Water them deeply once per week, or more often in hot weather. Fertilize them in the spring with a balanced fertilizer. Deadhead spent blooms to encourage more flowers to grow.

Frequently Asked Questions (FAQs)

1. Can I plant phlox with other sun-loving plants?

Yes, you can plant phlox with other sun-loving plants like coneflower, salvia, and yarrow.

2. What type of soil does phlox prefer?

Phlox prefers moist, well-drained soil that's rich in organic matter.

3. How often should I water phlox and its companion plants?

Water phlox and its companion plants deeply once per week, or more often in hot weather.

4. Do phlox and its companion plants require fertilizer?

Yes, phlox and its companion plants require fertilization in the spring with a balanced fertilizer.

5. Can I plant phlox with other shade-loving plants?

Yes, you can plant phlox with other shade-loving plants like astilbe and coral bells.


Phlox is an excellent choice for gardeners looking to add color and beauty to their landscape. When planted with specific companion plants, phlox can create stunning displays of color and texture that are sure to impress. Whether you choose to plant it with astilbe, salvia, yarrow, coneflower, or coral bells, make sure to provide adequate water, fertilization, and care to help your plants thrive.