Soil MUST BE ACIDIC. Lots of organic matter. Adequate moisture but, at the same time, well drained. Consider mulching with pine needles.
Plant in a location that enjoys partial sun and remember to water moderately. Keep in mind when planting that Northern Hi Lights is thought of as very hardy, so this plant will survive though longer winters with little or no damage. Ensure your soil is loamy and has a ph of between 5.0 and 6.5 as Dwarf azalea is a moderately acidic soil to weakly acidic soil loving plant.