One of the best tools that you have as gardeners to help us figure out 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 chance to plant streptocarpella in Imperial can be estimated by reviewing 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.

Streptocarpella require warm weather which means that you really should wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant streptocarpella in Imperial is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant streptocarpella and expect a good harvest is probably September. You probably don't want to wait any later than that or else your streptocarpella may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your streptocarpella indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Imperial. In the coldest months of winter you should expect an average low temperature of 30°F.

Remember that USDA zone info for Imperial is not always accurate and the actual date of last frost is different every year. Since half of the time in Imperial there is a last frost after January 31 be ready to cover your streptocarpella if you have one of those late frosts.

USDA Zone Info for Imperial

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Imperial

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