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

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

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

From Seattle Times

So that's the third major principle, thinking about and involving yourself in the natural world in some way, even if that's just having a window box if you can't get out.

From Salon

Even the smallest garden space — a single window box — can go a long way toward helping your local environment and its pollinators.

From Seattle Times