Corydalis calycosa


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From Peter Korn in Sweden to Ed Bowen in Rhode Island to us in Port Townsend - an interesting study in anthro-assisted ornamental plant dispersal. Beautiful blue flowers with white throats opening from amethyst buds. This is much slower to increase than the flexuosa/elata group. Best in cool gardens. We mean temperature not plant palette because if you are shopping here, then interesting gardens is a given.


Plant Type

  • Perennial / Bulb

Mature Size


Hardiness Zones

  • Zone 6a (-10 °F)
  • Zone 6b (-5 °F)
  • Zone 7a (0 °F)
  • Zone 7b (5 °F)
  • Zone 8a (10 °F)
  • Zone 8b (15 °F)

Sun Exposure

  • Part Shade - Part Sun
  • Shade

Water Needs

  • Moist

Bloom Time

  • Spring
  • Summer