The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant streptocarpella in Highland Park can be determined by using the USDA zone info.

Planting Calendar for Streptocarpella

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

You can not plant streptocarpella until after the last frost has passed because they are not cold tolerant.

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

Last Frost Date

The average date of last frost is April 15 in Highland Park. In the coldest months of winter you should expect an average low temperature of -5°F.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Highland Park and it is different every year. Half of the time in Highland Park it frosts late in the year after April 15 so make sure that you are ready to protect your streptocarpella if you have a surprise late frost.

USDA Zone Info for Highland Park

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 Highland Park

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