• Achillea 'Appleblossom'
  • Achillea 'Apricot Beauty'
  • Achillea 'Coronation Gold'
  • Achillea 'Moonshine'
  • Achillea millefolium 'Red Beauty'
  • Achillea 'Oertel's Rose'
  • Achillea 'Snowsport'
  • Aconitum 'Henryi Spark Variety'
  • Agastache 'Golden Jubilee'
  • Agastache ruprestris
  • Alchemilla alpina
  • Alchemilla erythropdoa
  • Alchemilla mollis
  • Allium senescens glaucum
  • Amsonia hubrectii
  • Amsonia hubrectii
  • Amsonia hubrectii
  • Amsonia tabernaemontana
  • Anemone sylvestris
  • Anemone 'Honerine Jobert'
  • Anemone 'Pink Saucer'
  • Anemone 'Prince Henry'
  • Anemone 'Queen Charlotte'
  • Anemone tomentosa 'Robustissima'
  • Anemone 'September Charm'
  • Aquilegia flabellata 'Mini Star'
  • Aquilegia flabellata 'Nana abla'
  • Arisaema triphyllum
  • Armeria maritima 'Alba'
  • Armeria maritimas 'Splendens'
  • Artemisia 'Powis Castle'
  • Artemisia schmidtiana 'Silver Mound'
  • Aruncus aesthusifolius