filmnet
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I do see that that grow days are for Corn?

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digitS'
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For corn the threshold temperature is 50°F. For peas the threshold temperature is 40°F.

The baseline for field crops like wheat, rye, etc. have been determined by experimenting, probably in growth chambers - the average 24-hour minimum temperature needed for growth.

It is an "all other things being equal" sort of measurement. Drought and that sort of thing would make a difference. The Weather Service begins keeping track on March 1st, I believe. So, any warm days in March or April when your warm-season plants are not out in the garden - wouldn't count. Of course, plants can be set out too early and their growth retarded.

Steve

gardenbean
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Of course, plants can be set out too early and their growth retarded. -Steve.

**Or you could step on them by accident or have your 90 lb. Black Lab dig up plants when he thought you werent' looking. Because you know things like that aren't going be found on a chart :P :wink:

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TheWaterbug
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filmnet wrote:I do see that that grow days are for Corn?
Wikipedia suggests that [url=https://en.wikipedia.org/wiki/Growing-degree_day]tomatoes and a few other veggies/bugs[/url] share the same baseline temp as corn.



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