When to Plant Squash in Spencer, IA

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.

One way of estimating when it's the best time to plant squash is to look at the USDA zone info for Spencer.


Planting Calendar for Squash

Frost tolerance for squash: Not tolerant of frost.
When to plant: After the last frost.

It's not a good idea to plant squash until after the last frost has passed because they do not do well in cold weather.

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

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

The last month that you can plant squash and expect a good harvest is probably August. Any later than that and your squash may not have a chance to fully mature. If you are starting your squash indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Spencer the average date of last frost happens on April 15. You can expect an average low temperature of -20°F in the coldest months of winter.

It's important to remember that USDA zone info for Spencer is not always accurate and the actual date of last frost is different every year. Half of the time in Spencer it frosts late in the year after April 15 so just be sure to be ready to cover your squash in the event of a surprise late frost.

USDA Zone Info for Spencer

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 Spencer

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