Experts and BHG readers answer.
Light and Soil Type for Limelight Hydrangea
Limelight hydrangea is not extremely particular about soil type and light. Since it doesn't depend on soil pH for coloration (it will always be greenish white), you can grow it in soil pH from 5.5 to 8.0, but slightly acidic conditions are best. Limelight will grow in full sun, but prefers partial shade. It may not bloom well in dense shade.