Hydrangea fails to flower

When you prune it are you cutting the whole stem out? all you need to do is cut back to the nearest healthy set of buds, and perhaps,if it is getting too congested cut one or two stems right out each year, in rotation. Your hydrangea should be ok in a large tub, but remember they needs lots of water.

Hi, my pot hydrangeas flower very well, as do my garden ones, could you put yours in a smaller pot perhaps, to make it panic and flower, instead of growing foliage? Do take cuttings in spring and they should flower too.