Before planting it is a good idea to find your USDA Zone info to figure out 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 USDA zone info for Marinette should be used to figure out when it's possible to plant cilantro.

Planting Calendar for Cilantro

Frost tolerance for cilantro:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Cilantro can survive in very little cold which means that you can plant them slightly earlier in the year than more sensitive plants.

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

The last month that you can plant cilantro and expect a good harvest is probably August. Any later than that and your cilantro may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your cilantro indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Marinette. You can expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that USDA zone info for Marinette is just an average and the actual date of last frost is different every year. Since half of the time in Marinette you get a frost after April 15 be ready to protect your cilantro in the event of a late frost.

USDA Zone Info for Marinette

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 Marinette

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