There are many different phlox species in the phlox family, including a variety of tall-garden phlox and low-creeping phlox. Gardeners often use low-creeping phlox plants as borders and ground covers in landscapes. Due to the many phlox varieties, it's important to space creeping phlox according to their variety. Generally, creeping phlox spreads quickly and grows to cover a planting area in a short time.
Prepare a sunny planting area for the creeping phlox. Work the soil with the garden spade down to a depth of approximately 12 inches. Work in at least 2 inches of compost to the top of the soil with a garden spade to improve the soil. Rake the soil surface smooth.
Dig holes for the creeping phlox plants that are two times wider than the temporary container holding the phlox plants. Consult specific planting instructions accompanying your creeping phlox plants to ensure that you space the plants properly. Generally, space creeping phlox plants 10 to 12 inches apart; in a short time, they will grow together to fill in the spaces.
Place the phlox plants into the prepared holes so that the tops of the root balls are at the same height as the surrounding soil. Fill in soil around the roots of the phlox plants and pat it down carefully. Water the plants generously.