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.

It's a good idea to figure out when it's the best time to plant torenia by reviewing the USDA zone info for Tinley Park.

Planting Calendar for Torenia

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

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

The earliest that you can plant torenia in Tinley 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 torenia and expect a good harvest is probably August. Any later than that and your torenia may not have a chance to grow to maturity. You can get started a little bit earlier by starting your torenia indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Tinley Park. You should expect an average low temperature of -15°F in the coldest months of winter.

Keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Tinley Park and it is different every year. Half of the time in Tinley Park there is a last frost after April 15 so make sure that you are ready to protect your torenia if you have a surprise late frost.

USDA Zone Info for Tinley Park

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Tinley Park

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