Set out shrubs 3 to 4 feet apart in a location where the soil is acid, moisture-retentive, and well drained. (Avoid hot, dry locations). Light shade is best. Choose a site, too, that is protected against winter sun and wind.
If chlorosis (yellowing of the leaves) becomes a problem, it is because the soil has a high pH. Correct this by applying sulphur or ferous sulphate to the soil. Prune only to remove older, bare branches or as desired to shape.