One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant streptocarpella in Hillsdale can be figured out by checking out the USDA zone info.

Planting Calendar for Streptocarpella

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

It's probably a bad idea to plant streptocarpella until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant streptocarpella in Hillsdale 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 fully mature. Starting your streptocarpella indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Hillsdale the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -15°F.

Just be sure to remember that USDA zone info for Hillsdale is not always accurate and the actual date of last frost is different every year. Since half of the time in Hillsdale last frost occurs after April 15 be ready to cover your streptocarpella if you have a late frost.

USDA Zone Info for Hillsdale

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 Hillsdale

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