Hepatica Flowers Close at Night

Round-lobed hepatica appears to bloom over a couple weeks time, with flowers coming and going according to the weather. Rainy, overcast and cooler weather hold back their blossoming.

Like a lot of flowers hepatica blossoms close up at night, too. This daily opening and closing of blooms is probably related to changes in temperature. Springtime evenings are cool and even cold, so perhaps there is some advantage to the plant in keeping the reproductive parts warm by closing up their petals.

Round-lobed hepatica blooms open in the daylight.
Round-lobed hepatica blooms open in the daylight.

The colorful “petals” of hepatica close up around the stamens overnight. The photo above was taken at 11 am and shows the blossoms just opening up in the daylight. Note that the three rounded bracts are visible.

Close-up of round-lobed hepatica flowers opening in the daytime.
Close-up of round-lobed hepatica flowers opening in the daytime.

Close-up photo of morning hepatica blooms taken 1 April 2010. The same hepatica flowers at about 6 pm the previous day were fully open (photo below taken 31 March 2010).

Round-lobed hepatica blooms fully open after a sunny day.
Round-lobed hepatica blooms fully open after a sunny day.
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2 thoughts on “Hepatica Flowers Close at Night

  1. Hepatica were my father’s favorite flower. I remember picking them in the woods near our home in Vermont. They were the first real sign of spring.

  2. Hi B Gatti –

    I’d second that! The beautiful hepatica flowers in early spring when everything else is still brown and grey.

    It’s nice to know that they grow in Vermont!

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