What's the term for a window cut into a hedge?

French derivation, I think. At first I thought "parterre" but that's not it. I'm thinking about a window or opening cut into a tall privet hedge, usually made of yew or laurel.

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Solution 1:

How about aperture, which sounds like parterre, but is actually just a fancy word for opening, hole, or gap. From Lexico:

aperture: an opening, hole, or gap

Example:

While she was trying to find her way out of the maze, she laid eyes on her soulmate for the first time through an aperture in the privet hedge.