Updated: May 12, 2024

Annual phlox, also known as Drummond phlox, is a popular flowering plant that adds vibrant colors to gardens and landscapes. With its delicate petals and sweet fragrance, annual phlox is a favorite among gardeners looking to brighten up their outdoor spaces. There are several different types of annual phlox flowers available, each with its own unique characteristics and growing requirements. In this article, we will explore some of the most common types of annual phlox and how to care for them.

1. Creeping Phlox (Phlox subulata)

Creeping phlox is a low-growing variety of annual phlox that is perfect for ground cover or rock gardens. It features small, star-shaped flowers in shades of pink, purple, white, and blue, which bloom in early spring. Creeping phlox is known for its ability to spread quickly and form dense mats of foliage that suppress weeds. This hardy plant thrives in full sun and well-drained soil, making it an excellent choice for gardeners looking for a low-maintenance ground cover option.

2. Annual Drummond Phlox (Phlox drummondii)

Annual Drummond phlox is one of the most popular varieties of annual phlox, prized for its large clusters of brightly colored flowers. This type of phlox comes in a wide range of hues, including pink, red, purple, and white. Annual Drummond phlox blooms profusely from late spring to early summer, attracting butterflies and other pollinators to the garden. This variety prefers full sun and well-drained soil but can tolerate some afternoon shade in hotter climates.

3. Garden Phlox (Phlox paniculata)

Garden phlox is a perennial variety of phlox that is often grown as an annual in colder climates. This tall plant features large flower heads in shades of pink, purple, white, and red, which bloom from midsummer to early fall. Garden phlox is prized for its fragrant blooms and long-lasting flowers, making it a favorite among flower arrangers. This variety thrives in full sun to partial shade and prefers rich, moist soil.

4. Moss Phlox (Phlox subulata)

Moss phlox is a creeping perennial variety of phlox that is often grown as an annual in colder climates. It features small flowers in shades of pink, purple, blue, and white, which bloom in early spring. Moss phlox is ideal for rock gardens, borders, or containers due to its low-growing habit and spreading nature. This variety prefers full sun and well-drained soil but can tolerate some light shade.

5. Drummond’s Pink Creeping Phlox (Phlox drummondii ‘Drummond’s Pink’)

Drummond’s Pink creeping phlox is a compact variety of annual phlox with delicate pink flowers that bloom profusely in spring. This low-maintenance plant is perfect for edging paths or borders and can also be grown in containers. Drummond’s Pink creeping phlox prefers full sun and well-drained soil but can tolerate some light shade.

How to Care for Annual Phlox Flowers

Regardless of the type of annual phlox you choose to grow in your garden, there are some general care tips you can follow to ensure your plants thrive:

  • Sunlight: Most annual phlox varieties prefer full sun to partial shade. Make sure your plants receive at least 6 hours of sunlight per day for optimal flowering.

  • Watering: Keep the soil around your annual phlox plants consistently moist but not waterlogged. Water deeply once a week or more frequently during hot, dry weather.

  • Fertilizing: Apply a balanced fertilizer to your annual phlox plants in early spring to promote healthy growth and abundant flowering.

  • Deadheading: Remove spent flowers regularly to encourage continuous blooming throughout the growing season.

  • Pest and Disease Control: Monitor your plants for pests like aphids or spider mites and treat them promptly with insecticidal soap or neem oil if necessary.

In conclusion, annual phlox flowers are a versatile and beautiful addition to any garden or landscape. With their wide range of colors and growth habits, there is a type of annual phlox to suit every gardener’s preferences. By selecting the right variety for your growing conditions and following proper care guidelines, you can enjoy the beauty of annual phlox flowers throughout the growing season.