window box

American  

noun

1. a box for growing plants, placed at or in a window.

2. a hollow space in a window frame for a sash weight.

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window box British  

noun

1. a long narrow box, placed on or outside a windowsill, in which plants are grown

2. either of a pair of vertical boxes, attached to the sides of a sash window frame, that enclose a sash cord and counterbalancing weight

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Etymology

Origin of window box

First recorded in 1880–85

Example Sentences

"If you don't have a garden consider window boxes and also there might be some local community initiatives to transform sort of green spaces to be more wildlife friendly."

From BBC

I knew I’d come to the right place when I looked out the window beyond her desk and saw — a window box.

From Los Angeles Times

Surrounded by pavement but longing for a garden, her grandfather built a window box that sat outside on a flat roof that could be accessed only through a bedroom window.

From Seattle Times

Beautiful limestone mansions showed off topiary gardens of starfruit trees and window boxes bursting with moonflowers.

From Literature

Add cold-season plantings like primroses, pansies, heather and cyclamen to pots and window boxes.

From Seattle Times