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

Allium nigrum (black garlic)

Allium sphaerocephalon (drumstick allium)

Amsonia hubrichtii (threadleaf blue star)

Anemone blanda ‘Blue Shades’ (Grecian windflower ‘Blue Shades’)

Anemone hupehensis var. japonica ‘Splendens’ (Japanese anemone ‘Splendens’)

Anemone nemorosa (wood anemone)

Anemone x hybrida ‘Honorine Jobert’ (Japanese anemone ‘Honorine Jobert’)

Aronia arbutifolia (red chokeberry)

Aruncus ‘Horatio’ (goatsbeard ‘Horatio’)