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 USDA zone info for Mason City should be reviewed to figure out when it's the best time to plant asparagus peas.

Planting Calendar for Asparagus peas

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

Asparagus peas do ok in mild cold which tells us that you can plant them just a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant asparagus peas in Mason City 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 asparagus peas and expect a good harvest is probably September. If you wait any later than that and your asparagus peas may not have a chance to grow to maturity. You can get started a little bit earlier by starting your asparagus peas indoors.

Last Frost Date

The average date of last frost is April 15 in Mason City. It might get as low as -20°F during the coldest months of winter.

It's important to remember that the actual date of last frost is just an average because it is based on the USDA zone info for Mason City and it can change quite a bit from year to year. Half of the time in Mason City you get a frost after April 15 so always be ready to cover your asparagus peas in the event of one of those late frosts.

USDA Zone Info for Mason City

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 Mason City

You may be interested in your other planting guides for Mason City.