July sees the flowers in the Temple of Bacchus and the Small Walled Garden exhibition coming to their peak. Here is one of the flower beds at the Temple of Bacchus site.

And here is Nigella hispanica (Spanish Love-in-a-mist) which features both here and in the central flower bed in the Small Walled Garden.

By the end of July, the American perennials are beginning to show their flowers, like these Hydrangea arborescens. 

And here is the Plant Theatre in the Small Walled Garden, displaying a range of exotic plants from around the world.