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Daylily (Hemerocallis) Definitions

Because of our short season area daylilies do not always perform like they do in areas with a longer gardening season. W. & E. Radtke is conducting a trial of re-blooming, long blooming, and ever blooming daylilies to see how they bloom in our area. We will update our catalog information as we are able to confirm these traits.

DIURNAL
A normal, day blooming Hemerocallis

NOCTURNAL
These daylilies open in the late afternoon, remain open all night, and close the following morning or early afternoon

EXTENDED BLOOM
Individual blooms remain open at least 16 hours. Both diurnal and nocturnal bloomers may be extended bloomers

RE-BLOOMING / REPEAT BLOOMER
These daylilies bloom more than one time during a single season. Usually blooming early and then repeating in late summer or fall

LONG BLOOMING
These daylilies have a succession of bloom periods, one shortly after the other for several months, possibly up to 75 days of bloom per season.

EVER BLOOMING
When the succession of bloom periods happens so close together it becomes hard to tell when a pause occurs.

HEAVY BLOOMING
Abundant blooms, very floriferous, lots and lots of flowers