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Creeping Phlox (Phlox subulata) is a popular ground cover known for its vibrant spring blooms and low-growing habit. Proper fertilization is essential for maintaining its health, promoting abundant flowers, and ensuring long-term growth. Understanding the what, when, and how much of fertilizing creeping phlox can help gardeners achieve a lush, colorful landscape.
What Fertilizer to Use for Creeping Phlox
The best fertilizers for creeping phlox are balanced, slow-release formulas that provide essential nutrients without overwhelming the plant. A fertilizer with an equal ratio of nitrogen, phosphorus, and potassium (such as 10-10-10) is ideal. Organic options like compost, fish emulsion, or seaweed extract can also support healthy growth and soil vitality.
When to Fertilize Creeping Phlox
The optimal time to fertilize creeping phlox is in early spring, just as new growth begins. This provides nutrients for vigorous blooming and healthy foliage. A second application can be made after the flowering period ends, typically in late spring or early summer. Avoid fertilizing late in the season, as this can promote tender growth susceptible to winter damage.
How Much Fertilizer to Apply
Apply fertilizer according to the package instructions, generally about one to two pounds per 100 square feet. For liquid feeds, dilute as directed and use every 4-6 weeks during the growing season. For granular fertilizers, lightly work the granules into the soil surface and water thoroughly to activate nutrients. Over-fertilizing can lead to excessive foliage growth at the expense of flowers, so moderation is key.
Additional Tips for Healthy Creeping Phlox
- Ensure well-draining soil to prevent root rot.
- Mulch around the plants to conserve moisture and suppress weeds.
- Prune after flowering to maintain shape and encourage new growth.
- Monitor for pests and diseases regularly.
With proper fertilization and care, creeping phlox will thrive, providing a stunning carpet of color each spring. Understanding the what, when, and how much of fertilizing ensures your ground cover remains healthy and vibrant for years to come.