1. Planting: Select a location that receives ample sunlight. These plants prefer 6+ hours of direct sunlight daily. However, they can still do well in a partially shaded spot. This still means they would need at least 2 to 4 hours of direct morning sunlight, and they can tolerate afternoon shade.

After choosing your area, dig a hole that is twice as wide and just as deep as the container that the plant arrives in. Place your plant in the hole so that the top of the soil is even with the surrounding soil level. Backfill with a mixture of native soil and compost. Water after every few inches to settle the soil and remove any air pockets that may have formed. When done, tamp the soil, water the plant in, and cover the area with mulch to protect the roots and help them conserve moisture.

2. Watering: Ensure the area has well-draining soil. Once planted, your Butterfly Bush should be watered once or twice weekly. The soil must be moist at least 6 to 8 inches deep. Once watered, allow the soil to dry out before watering again. 

3. Fertilizing: Butterfly Bushes rarely need fertilizer unless you're dealing with poor soil conditions. If that is the case, you can use a slow-release fertilizer for your plants. Follow the instructions on the package of your fertilizer and be certain to water deeply afterwards.

4. Pruning: These plants can be pruned annually. Although it's not required, you can remove spent blooms on the plant to encourage more blooms. Butterfly Bushes can also be pruned towards the ground for shaping, during the plant's dormancy period in late fall to early winter.