One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant gherkins in Marengo should be determined by using the USDA zone info.

Planting Calendar for Gherkins

Frost tolerance for gherkins:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You should not plant gherkins until after all chance of frost has passed because they require warm weather.

The earliest that you can plant gherkins in Marengo is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant gherkins and expect a good harvest is probably August. You probably don't want to wait any later than that or else your gherkins may not have a chance to grow to maturity. If you are starting your gherkins indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Marengo. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Marengo is not always accurate the actual date of last frost is different every year. Since half of the time in Marengo last frost occurs after April 15 be ready to cover your gherkins if you have a late frost.

USDA Zone Info for Marengo

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Marengo

You may be interested in your other planting guides for Marengo.