Foxgloves are a couple of feet, verbena anywhere up to 6' if in a sheltered spot. I like those big yellow achilleas too.
Climbers - jasmine or clematis for something permanent, sweetpeas and nasturtiums for annuals that will scramble up a bamboo stake or two. Although nasturtiums sometimes decide to go across rather than up.
Our foxgloves are about 4' tall. Good for some height and self seed like mad, but they're biennials and probably happiest with a bit of shade.
Bumblebees love them.
Sweet peas are a good bet if you can put something in for them to climb
Foxgloves are a couple of feet, verbena anywhere up to 6' if in a sheltered spot. I like those big yellow achilleas too.
Climbers - jasmine or clematis for something permanent, sweetpeas and nasturtiums for annuals that will scramble up a bamboo stake or two. Although nasturtiums sometimes decide to go across rather than up.