It’s called a “living umbrella,” and it’s designed to provide cooler air on outdoor patios and seating areas by using a naturally occurring process involving plants.

University of Maryland professor David Tilley designed the aluminum umbrella stands, which incorporate four pots and a solar-powered standalone watering system.

Sturdy enough to withstand a storm, the six-foot Living Canopies umbrella stand is cooler than a fabric umbrella because its leaves evaporate water — a process known as transpiration that removes heat from the surrounding air.

It’s a natural remedy to the urban “heat island” effect that tends to happen when materials like concrete, asphalt and brick absorb and then radiate heat throughout the day.

Started with two former UMD students, Tilley’s company is now selling living umbrellas directly to residential and commercial customers nationwide, especially cafes and restaurants looking to make outdoor seating more comfortable.

A residential living umbrella frame is currently on sale for $250, or $495 with the irrigation system included. Mandevilla plants (which flower from April through October) are sold separately, or you can use any other flowering or edible vine.

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