One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Forest Park should be reffered to in order to figure out when to plant browallia.

Planting Calendar for Browallia

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

It's not a good idea to plant browallia until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant browallia in Forest Park 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 browallia and expect a good harvest is probably August. Any later than that and your browallia may not have a chance to fully mature. Starting your browallia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Forest Park. You should expect an average low temperature of -10°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Forest Park may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Forest Park it frosts late in the year after April 15 so make sure that you are prepared to protect your browallia if you have one of those late frosts.

USDA Zone Info for Forest Park

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 Forest Park

You may be interested in your other planting guides for Forest Park.