A form of sculpting that refers to daylily flowers with appendages of extra petal tissue growing from the midrib or elsewhere on the surface of the petals. Cristation can occur on single and double daylilies, but a cristate single daylily is not classified as a double.

Cristate is a botanical term that has been described as: “crested; bearing any elevated appendage on its surface”, from Gray, Asa. Introduction to Structural and Systematic Botany and Vegetable Physiology. Ivison, Blakeman, Taylor, 1857.

‘Threadfall’ (Derrow 2019), photo by Cameron Stern, used with permission

Bee's Bettie Sue petal

‘Bee’s Bettie Sue’ (Downie 1996) cristate petal, photo by Susan Bergeron, used with permission


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The American Daylily Society