Hydrangeas and other woody plants take some time to get established. Now that you’ve moved it, I’d leave it where it is for a few more years. I always suggest adding bone meal to the planting hole to provide a slowly available source of phosphorus that lasts for several years. Phosphorus stimulates root growth to get you hydrangea established and also enhance its ability to flower. In addition I’d feed it with Espoma Flower-tone as soon as the ground can be worked in spring and again about 8 weeks later. This agressive (but gentle) feeding will hasten establishment of a good root system and shorten the time until the plant can spare the energy for a flowering cycle.