Acanthus mollis ‘Rue Ledan’ (bear’s breeches ‘Rue Ledan’)

Acanthus spinosus (bear’s breeches)

Achillea ‘Moonshine’ (yarrow ‘Moonshine’)

Actaea racemosa (black cohosh)

Actaea ‘Queen of Sheba’ (bugbane ‘Queen of Sheeba’)

Adiantum pedatum (northern maidenhair fern)

Agastache foeniculum (anise hyssop)

Agastache nepetoides (yellow giant hyssop)

Ageratina altissima (white snakeroot)

Allium aflatunense ‘Purple Sensation’ (purple sensation allium)