When to Plant Tomatos in Yorkville, IL

Before planting it is a good idea to find your USDA Zone info to figure out 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.

You can determine when it's a good idea to plant tomatos in Yorkville by reviewing the USDA zone info.


Planting Calendar for Tomatos

Frost tolerance for tomatos: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Tomatos are not cold tolerant which means that you have to wait until it warms up after the last frost before you can plant them.

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

The earliest that you can plant tomatos in Yorkville 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 tomatos and expect a good harvest is probably August. Any later than that and your tomatos may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your tomatos indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Yorkville. You should expect an average low temperature of -15°F in the coldest months of winter.

Remember that USDA zone info for Yorkville may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Yorkville last frost occurs after April 15 be ready to protect your tomatos in the event of one of those late frosts.

USDA Zone Info for Yorkville

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 Yorkville

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