What kind of fertilizer to use on phlox?

For phlox, a balanced fertilizer with equal parts nitrogen, phosphorus, and potassium (e.g., a 10-10-10 formula) is ideal. You can also use a slow-release granular fertilizer or a water-soluble fertilizer every 4-6 weeks during the growing season. Additionally, incorporating organic matter, like compost, can enhance soil fertility and improve overall plant health. Always follow the manufacturer's instructions for application rates.