One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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 spinach in Forest Lake should be estimated by reviewing the USDA zone info.

Planting Calendar for Spinach

Frost tolerance for spinach:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Spinach are one of those plants that can tolerate a little bit of cold weather which means that you can plant them a little bit earlier than other frost tender plants.

The earliest that you can plant spinach in Forest Lake 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 spinach and expect a good harvest is probably August. If you wait any later than that and your spinach may not have a chance to grow to maturity. Starting your spinach indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Forest Lake. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Forest Lake is not always accurate the actual date of last frost changes from year to year. Since half of the time in Forest Lake it frosts late in the year after May 15 be ready to cover your spinach if you have one of those late frosts.

USDA Zone Info for Forest Lake

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 Forest Lake

You may be interested in your other planting guides for Forest Lake.