Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. 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 Marshfield should be figured out by checking out the USDA zone info.

Planting Calendar for Gherkins

Frost tolerance for gherkins:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

It's a bad idea to plant gherkins until after the last frost because they are not cold tolerant.

The earliest that you can plant gherkins in Marshfield is May. However, you really should wait until June 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. If you wait any later than that and your gherkins may not have a chance to really do well. Starting your gherkins indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Marshfield. In the coldest months of winter you should expect an average low temperature of -25°F.

Since the USDA zone info for Marshfield is just an average the actual date of last frost will vary from year to year. Half of the time in Marshfield last frost occurs after May 15 so make sure that you are prepared to protect your gherkins if you have a surprise late frost.

USDA Zone Info for Marshfield

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Marshfield

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