The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Hartland you can figure out when you can plant streptocarpella 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 when the weather gets warmer.

You can not plant streptocarpella until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant streptocarpella in Hartland 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. 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 Hartland. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Hartland is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Hartland it frosts late in the year after April 15 so be sure to be ready to protect your streptocarpella in the event of one of those late frosts.

USDA Zone Info for Hartland

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Hartland

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