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.
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.