Understanding Garden Phlox

Garden phlox is a popular herbaceous perennial plant that can be found in many gardens across the world. It is known for its tall spikes of colorful flowers that bloom in the summer, which can range in color from pink, purple, red, and white. Garden phlox is also loved for its sweet fragrance, which attracts pollinators like bees and butterflies to the garden.

Types of Garden Phlox

There are two types of garden phlox: tall garden phlox (Phlox paniculata) and creeping phlox (Phlox subulata). Tall garden phlox is the more common of the two and can grow up to 5 feet tall. It is often used as a backdrop in the garden due to its height. Creeping phlox, on the other hand, is a low-growing ground cover that is often used to cover slopes and rocky areas in the garden.

Planting Garden Phlox

Garden phlox is an easy plant to grow, making it a great choice for beginner gardeners. It prefers well-draining soil and full sun, although it can tolerate some partial shade. Garden phlox should be planted in the spring or fall, and it is important to space the plants about 18 inches apart to allow room for growth.

One of the most common questions gardeners have about garden phlox is whether or not it spreads. The answer is yes, garden phlox can spread, but it depends on the variety and how it is grown.

Tall Garden Phlox

Tall garden phlox has a clumping habit, which means that it grows in a clump and does not spread out. However, over time, the clump can get larger and may need to be divided every few years to keep it from becoming too crowded. Dividing the clump is easy to do and can be done in the spring or fall.

Creeping Phlox

Creeping phlox, on the other hand, is a ground cover that can spread quickly if not contained. It can be an excellent plant for erosion control and for covering slopes and rocky areas. However, if you do not want it to spread, it is important to plant it in an area where it can be contained, such as a raised bed or a container.

Tips for Controlling Garden Phlox Spread

If you want to control the spread of garden phlox, there are a few tips you can follow.

Divide Tall Garden Phlox

As mentioned earlier, tall garden phlox should be divided every few years to keep it from becoming too crowded. Dividing the plant not only helps control its spread but also promotes healthy growth and can increase the number of flowers it produces.

Plant Creeping Phlox in a Container

If you want to enjoy the beauty of creeping phlox without worrying about it spreading, consider planting it in a container. This will keep it contained and allow you to move it around as needed.

Use Edging

Using edging around garden beds can help contain creeping phlox and prevent it from spreading into other areas of the garden. This can be done using materials like bricks, stones, or plastic edging.

Prune Regularly

Regularly pruning garden phlox can help control its spread. This can be done by deadheading spent flowers and cutting back the plant in the fall.

Final Thoughts

In conclusion, garden phlox can spread, but it depends on the variety and how it is grown. Tall garden phlox has a clumping habit and can be divided every few years to control its spread, while creeping phlox is a ground cover that can spread quickly if not contained. By following the tips mentioned above, you can enjoy the beauty of garden phlox without worrying about it taking over your garden.