Improper watering is often the cause of wilting in garden phlox. When the soil is dry for extended periods of time, plants cannot receive adequate moisture or the nutrients they receive through an uptake of water. On the other side of the coin, plants left in standing water may drown.

How do I bring my phlox back to life?

To ensure healthy plants, phlox should be fertilized regularly, either with slow release fertilizer for flowering plants or monthly foliar sprays. Phlox plants also prefer slightly acidic soil and may not perform well in soils that are too alkaline.

Can phlox get too much water?

Phlox are also sensitive to irregular irrigation, especially if the plants are overwatered, as sometimes happens during years of excessive rainfall like the one we just had. Signs of overwatering are a lot like the signs of under-watering, including plant wilting, reduced flowering, and stem death.