Nature

Frostweed Amazed Many During Last Week’s Deep Freeze

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Conditions Must Be Just Right For Frostweed

frostweed

Photo: Flickr/trekr

As the temperature plummets, sap in the trunk cools and expands, eventually breaking through the epidermis of the plant. The sap hits the freezing air, solidifies in thin sheets, moving up along the vertical structure of the plant. The ice sculptures freeze in a ribbon-like design. Conditions for this awesome display are particular: the ground must be moist, assuring the roots are actively drawing  water into the plant.  Also, the temperature drop must be relatively rapid, which is what we experienced last week in Texas.

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