Phlox Flower Fertilizer. 26062020 Trimming or pruning of the Phlox plant is necessary to ensure that the plant grows and blooms well. For this reason these plants do best planted in fertile soil.
On the other hand it also helps the plant grow bushier. If your soil is lacking in nutrients then an application of fertilizer during the growing season will be necessary. If you have tall phlox cut the stems back to about 1 to 2 inches above the soil after the first killing frost in the fall.
When buying tomato plants look for compact ones with sturdy stems.
Top dressing the plants with a couple inches of compost will add nutrients and help improve the soil. Fertilizing Phlox A general purpose slow-acting granular fertilizer worked into the soil around the plants in the spring is sufficient for phlox for the season. To put on a show each summer phlox drummondii will need sufficient soil nutrients to support lush foliage and abundant flowering. See local frost dates Divide tall garden phlox every 2 to 3 years to ensure healthy and disease-free plants.