When to Plant Squash in Algonquin, IL

One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Algonquin it's a good idea to figure out when it's the best time to plant squash.


Planting Calendar for Squash

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

You can not plant squash until after the last frost has passed because they require warm 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 Algonquin 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. You probably don't want to wait any later than that or else your squash may not have a chance to fully mature. Starting your squash indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for Algonquin may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Algonquin you get surprised by a frost after April 15 so just be sure to be ready to protect your squash if you have a surprise late frost.

USDA Zone Info for Algonquin

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 Algonquin

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