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 it's the best time to plant sweet peas by referring to the USDA zone info for Wentzville.

Planting Calendar for Sweet Peas

Frost tolerance for sweet peas:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Sweet Peas do well in very little cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant sweet peas in Wentzville is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant sweet peas and expect a good harvest is probably August. You probably don't want to wait any later than that or else your sweet peas may not have a chance to really do well. If you are starting your sweet peas indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Wentzville. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Wentzville may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Wentzville there is a last frost after April 15 be ready to protect your sweet peas in the event of a surprise late frost.

USDA Zone Info for Wentzville

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 Wentzville

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