Achillea millefolium 'Cerise Queen'

Achillea millefolium 'Lilac Beauty'

Achillea millefolium 'Pink Island Form'

Achillea millefolium 'Ritzy Rose'

Achillea millefolium 'Ritzy Ruby'

Achillea ptarmica 'Peter Cottontail'

Achillea ptarmica 'The Pearl'

Achillea ptarmicifolia

Achillea sibirica var. camtschatica 'Love Parade'

Achillea tomentosa 'Maynard's Gold'

Achimenes 'Apricot Glow'

Achimenes 'Caligula'

Achimenes 'Harry Williams'

Achimenes 'Ice Tea'

Achimenes 'Peach Glow'

Achimenes 'Weinrot Elfe'

Achimenes mexicana

Achlys triphylla

Acis autumnalis 'September Snow'

Aconitum 'Newry Blue'

Aconitum carmichaeli

Aconitum carmichaelii 'Arendsii'

Aconitum carmichaelii 'Barker's Variety'