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When to Plant Asparagus peas in Iowa City, IA

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when it's the best time to plant asparagus peas by checking out the USDA zone info for Iowa City.

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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 are moderately cold tolerant which tells us that you can get them planted earlier than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant asparagus peas
Possibly ok, but a risky time to plant asparagus peas
Probably not a good time to plant asparagus peas

The earliest that you can plant asparagus peas in Iowa 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. You probably don't want to wait any later than that or else your asparagus peas may not have a chance to really do well. If you are starting your asparagus peas indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Iowa City the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -15°F.

It's important to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Iowa City and it changes from year to year. Half of the time in Iowa City there is a last frost after April 15 so just be sure to be ready to protect your asparagus peas if you have a late frost.

USDA Zone Info for Iowa City

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 Iowa City

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