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

In Wentzville you can estimate when to plant geranium by checking out the USDA zone info.

Planting Calendar for Geranium

Frost tolerance for geranium:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since geranium do not do well in cold weather it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant geranium in Wentzville 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 geranium and expect a good harvest is probably August. You probably don't want to wait any later than that or else your geranium may not have a chance to fully mature. Starting your geranium indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Wentzville. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Wentzville is just an average the actual date of last frost will vary from year to year. Half of the time in Wentzville there is a last frost after April 15 so make sure that you are prepared to cover your geranium in the event of a 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.