perennial cornflower

abelia

Abelia 'Edward Goucher'

abelia

Abelia 'Rose Creek'

Adriatic bellflower

Campanula garganica 'Dickson's Gold'

African daisy

Arctotis hybrida

ajania

Ajania pacifica

Alps yarrow

Achillea distans

alternate-leaved butterfly bush

Buddleja alternifolia

American boneset

Eupatorium perfoliatum 'Milk and Cookies'