Plant apache plume a full-sun location in the warmest area of the garden. The soil must drain well.
Remove the apache plume from its nursery pot. Plant it in a hole that is twice the diameter of the pot and the same depth. Fill the hole with soil, pressing around the base of the shrub with your feet to remove air pockets.
Water the apache plume to keep the soil evenly moist at all times. After three months, begin gradually decreasing the frequency of irrigations until the shrub is watered deeply only once a month during the hottest times of the year. When the weather cools, the plant requires no water.
Prune the apache plume only if it is being grown as a shrub. Other than shearing it to the desired shape, it requires no pruning.