The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By reviewing the USDA zone info for Marshalltown it's a good idea to determine when you can plant beets.

Planting Calendar for Beets

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

Beets do well in moderate cold which tells us that you can plant them earlier than other plants that might not handle the cold.

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

The last month that you can plant beets and expect a good harvest is probably September. You probably don't want to wait any later than that or else your beets may not have a chance to fully mature. You can get started a little bit earlier by starting your beets indoors.

Last Frost Date

The average date of last frost is April 15 in Marshalltown. In the coldest months of winter you should expect an average low temperature of -20°F.

Just be sure to remember that USDA zone info for Marshalltown is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Marshalltown it frosts late in the year after April 15 be ready to cover your beets if you have one of those late frosts.

USDA Zone Info for Marshalltown

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Marshalltown

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