Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of estimating when it's possible to plant streptocarpella is to check out the USDA zone info for Atwater.

Planting Calendar for Streptocarpella

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

You really shouldn't plant streptocarpella until after all chance of frost has passed because they require warm weather.

The earliest that you can plant streptocarpella in Atwater is March. However, you really should wait until April 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 fully mature. Starting your streptocarpella indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost is on February 15 in Atwater. You can expect an average low temperature of 20°F in the coldest months of winter.

It's important to remember that USDA zone info for Atwater may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Atwater there is a last frost after February 15 so make sure that you are prepared to cover your streptocarpella in the event of one of those late frosts.

USDA Zone Info for Atwater

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°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 25°F.

Plants to Grow in Atwater

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