a b c d e f g h i j k l m n o p q r s t u v w x y z #
  • Common Name: Ornamental Onion
  • Cold Hardiness: Zone 4
  • Sun or Shade: Sun
  • Bloom Time: mid summer
Allium 'Millenium' photo courtesy of Walters Gardens
Allium 'Serendipity'
Proven Winners Introduction
  • Common Name: Ornamental Onion
  • Cold Hardiness: Zone 4-8
  • Sun or Shade: full sun
  • Bloom Time: mid to late summer
Allium 'Serendipity' photo courtesy of Walters Gardens
Amsonia 'Starstruck'
Available Mid May
New for 2021
  • Common Name: Blue Star
  • Cold Hardiness: Zone 4-7
  • Sun or Shade: Min of 4-6 hrs direct sum
  • Bloom Time: late spring to mid summer
Amsonia 'Startstruck' photo courtesy of Walters Gardens
  • Common Name: Blue Star
  • Cold Hardiness: Zone 4
  • Sun or Shade: sun to partial shade
  • Bloom Time: late spring to early summer
Amsonia Blue Ice photo courtesy of Walters Gardens
  • Common Name: Arkansas Blue Star
  • Cold Hardiness: Zone 4
  • Sun or Shade: sun to partial shade
  • Bloom Time: early summer
Amsonia hubrichtii photo courtesy of Walters Gardens
  • Common Name: Japanese Anemone
  • Cold Hardiness: Zone 4-8
  • Sun or Shade: Sun to partial shade
  • Bloom Time: Late summer to early fall
photo of Anemone 'Curtain Call Deep Rose'
  • Common Name: Japanese Anemone
  • Cold Hardiness: Zone 4-9
  • Sun or Shade: partial shade
  • Bloom Time: late summer to early fall
photo of Anemone 'Honorine Jobert'  courtesy of Walters Gardens
  • Common Name: Golden Japanese Spikenard
  • Cold Hardiness: Zone 3
  • Sun or Shade: partial shade
  • Bloom Time: late summer to early fall
Aralia cordata Sun King photo courtesy of Walters Gardens
  • Common Name: Dwarf Goat's Beard
  • Cold Hardiness: Zone 2
  • Sun or Shade: sun to partial shade
  • Bloom Time: summer
Aruncus aethusifolius photo courtesy of Walters Gardens
  • Common Name: Goat's Beard
  • Cold Hardiness: Zone 3-7
  • Sun or Shade: sun to partial shade
  • Bloom Time: mid summer
Aruncus 'Chantilly Lace' photo courtesy of Walters Gardens
  • Common Name: Goat's Beard
  • Cold Hardiness: Zone 3
  • Sun or Shade: partial sun to partial shade
  • Bloom Time: late spring
Aruncus dioicus photo courtesy of Walters Gardens
  • Common Name: Goat's Beard
  • Cold Hardiness: Zone 3-8
  • Sun or Shade: sun to light shade (minimum 4 hrs direct sun)
  • Bloom Time: early to mid summer
photo of Aruncus'Fairy Hair' courtesy of Walters Gardens
  • Common Name: European Ginger, Hazelwort
  • Cold Hardiness: Zone 4
  • Sun or Shade: filtered shade
  • Bloom Time: spring
Asarum europeaum photo courtesy of Paridon Horticultural
  • Common Name: Yellow Butterfly Weed
  • Cold Hardiness: Zone 3
  • Sun or Shade: sun
  • Bloom Time: mid to late summer
Asclepias 'Hello Yellow' photo courtesy of Walters Gardens
  • Common Name: Orange Butterfly Weed
  • Cold Hardiness: Zone 3
  • Sun or Shade: sun
  • Bloom Time: midsummer
Asclepias tuberosa photo courtesy of Walters Gardens
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