One of the best tools that you have as gardeners to help us figure out 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.

The best time to plant peanut in Ontario can be determined by checking out the USDA zone info.

Planting Calendar for Peanut

Frost tolerance for peanut:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You really shouldn't plant peanut until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant peanut in Ontario 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 peanut and expect a good harvest is probably August. You probably don't want to wait any later than that or else your peanut may not have a chance to grow to maturity. You can get started a little bit earlier by starting your peanut indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Ontario. You can expect an average low temperature of -5°F in the coldest months of winter.

Keep in mind that USDA zone info for Ontario is not always accurate and the actual date of last frost changes from year to year. Half of the time in Ontario you get surprised by a frost after April 15 so always be ready to cover your peanut in the event of a late frost.

USDA Zone Info for Ontario

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Ontario

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