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

Aconitum fischeri (azure monkshood)

Aconitum henryi ‘Spark’s Variety’ (monkshood ‘Spark’s Variety)

Actaea racemosa (black cohosh)

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

Adiantum pedatum (northern maidenhair fern)

Ageratina altissima (white snakeroot)

Allium cernuum (nodding wild onion)

Allium christophii (star of Persia)

allium lusitanicum ‘Summer Beauty’ (allium ‘Summer Beauty’)