Allium christophii (star of Persia)

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

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

Aronia arbutifolia (red chokeberry)

Asclepias incarnata (swamp milkweed)

Aster tataricus ‘Jindai’ (Tatarian aster ‘Jindai’)

Astilbe chinensis ‘Purpurkerz’ (Chinese astilbe ‘Purple Candle’)

Astilbe chinensis var. taquetii ‘Purpurlanze’ (Chinese astilbe ‘Purple Lance’)

Astilbe ‘Delft Lace’ (false goat’s beard ‘Delft Lace’)

Astrantia major ‘Roma’ (masterwort ‘Roma’)