Answer: You can move your hydrangea either in the spring or in the fall; both seasons typically have cool weather and abundant rain, which will help your plant become established with the least amount of stress.
Plant in any average garden soil that has good drainage. If your soil is clayey and tends to hold water, amend a large area (not just the planting hole) with compost or aged-manure. This will help it drain quickly and will add some nutrients to the soil.
Best wishes with your move!
Q&A Library Searching Tips