I think I would put the Hydrangea in the ground too
@DeborahJane, don't think they care to much for root restriction.
An idea below and I'm wondering if it's available to you. This is Fuschia 'Hawkshead'. It has delicate white flowers and is hardy so although deciduous it will survive the winter months. This picture was taken last year and over the winter I made the mistake of pruning it. I've found out since 'Hawkshead' doesn't like being pruned and this summer it's hardly flowered at all!
The other little flowers in the pot are dwarf Sweet Peas.
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