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  • Common Name: Umbrella Plant
  • Cold Hardiness: Zone 4-9
  • Sun or Shade: partial shade
  • Bloom Time: early spring
Delosperma Table Mountain
Available late May
  • Common Name: Hardy Ice Plant
  • Cold Hardiness: Zone 4-9
  • Sun or Shade: sun
  • Bloom Time: early spring to late fall
Delosperma Table Mountain
Delphinium Cobalt Dreams
Available Mid June
  • Common Name: Delphinium
  • Cold Hardiness: Zone 3
  • Sun or Shade: sun to partial sun
  • Bloom Time: early summer
Delphinium Cobalt Dreams photo courtesy of photo courtesy of Dowdeswell's Delphiniums
  • Common Name: Delphinium
  • Cold Hardiness: Zone 3
  • Sun or Shade: sun to partial sun
  • Bloom Time: early summer
Delphinium elatum Purple Passion
  • Common Name: Delphiniums
  • Cold Hardiness: Zone 3-7
  • Sun or Shade: sun to light shade
  • Bloom Time: early summer with rebloom
Delphinium Pagan Purples
Dianthus Electric Red
Available mid June
  • Common Name: Garden Pinks
  • Cold Hardiness: Zone 4-9
  • Sun or Shade: sun to light shade (minimum 4 hrs direct sun)
  • Bloom Time: early summer to early fall
Dianthus 'Electric Red' photo courtesy of Walters Gardens
Dianthus Kiss and Tell
New for 2020
  • Common Name: Perennial Pinks
  • Cold Hardiness: Zone 4-9
  • Sun or Shade: sun to part shade (minimum 4 hrs of direct sun)
  • Bloom Time: early summer to early fall
Dianthus 'Kiss and Tell' photo courtesy of Walters Gardens
  • Common Name: Pinks
  • Cold Hardiness: Zone 4
  • Sun or Shade: sun
  • Bloom Time: early to mid summer
Dianthus 'Neon Star' photo courtesy of Walters Gardens
  • Common Name: Pinks
  • Cold Hardiness: Zone 4-9
  • Sun or Shade: sun to part shade (minimum 4 hrs of direct sun)
  • Bloom Time: early summer to early fall
Dianthus Raspberry Splash
  • Common Name: Pinks
  • Cold Hardiness: Zone 4-9
  • Sun or Shade: sun
  • Bloom Time: early summer with fall rebloom
Dianthus Sweetie Pie
  • Common Name: Fern Leaf Bleeding Heart
  • Cold Hardiness: Zone 4-9
  • Sun or Shade: partial shade
  • Bloom Time: late spring to early summer
Dicentra 'King of Hearts' photo courtesy of Walters Gardens
  • Common Name: Old Fashioned Bleeding Hearts
  • Cold Hardiness: Zone 3
  • Sun or Shade: partial sun to partial shade
  • Bloom Time: late spring
Dicentra 'Gold Heart' photo courtesy of Walters Gardens
Dicentra spectabilis Valentine
Available mid June
  • Common Name: Old Fashioned Bleeding Hearts
  • Cold Hardiness: Zone 3
  • Sun or Shade: partial sun to partial shade
  • Bloom Time: late spring
Dicentra spectabilis 'Valentine' photo courtesy of Visions
Dictamnus albus albiflorus
Available mid July
  • Common Name: Gas Plant
  • Cold Hardiness: Zone 3
  • Sun or Shade: sun to partial sun
  • Bloom Time: June
Dictamnus albus albiflorus photo courtesy of Walters Gardens
  • Common Name: Gas Plant
  • Cold Hardiness: Zone 3
  • Sun or Shade: sun to partial sun
  • Bloom Time: June
Dictamnus albus purpureus photo from Whitehouse Display Gardens