knee-high by the 4th of July

knee-high by the 4th of July

old-fashioned The height to which corn seedlings ought to have grown by the beginning of July. Primarily heard in US. This dry spell is showing no signs of letting up. I'm worried about our crops this year, but if we can get to knee-high by the 4th of July, we should be all right.
See also: 4th, by, July, of
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

*knee-high by the 4th of July

Fig. grown as tall as it should. (Corn seedlings are proverbially supposed to be as high as someone's knee by July 4th.) (*Typically: be ~; become ~; grow ~.) What with this drought, I don't think the crop will be knee-high by the 4th of July. It's gonna be a good year. Knee-high by the 4th of July.
See also: 4th, by, July, of
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
"We usually say it should be knee-high by the 4th of July but it's already up to my shoulders.