One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to estimate when you can plant watermelon by checking out the USDA zone info for Bloomington.

Planting Calendar for Watermelon

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

Watermelon are not cold tolerant which means that you must wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant watermelon in Bloomington 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 watermelon and expect a good harvest is probably August. If you wait any later than that and your watermelon may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your watermelon indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Bloomington. In the coldest months of winter you can expect an average low temperature of -10°F.

Keep in mind that USDA zone info for Bloomington may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Bloomington there is a last frost after April 15 so make sure that you are ready to protect your watermelon in the event of one of those late frosts.

USDA Zone Info for Bloomington

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Bloomington

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