One of the first steps you take when you are estimating your gardening schedule is find your 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.

One way of making a decision about when it's the best time to plant streptocarpella is to refer to the USDA zone info for Warrenton.

Planting Calendar for Streptocarpella

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

Streptocarpella are not cold tolerant which means that it's important to 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 Warrenton 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 grow to maturity. Starting your streptocarpella indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Warrenton. In the coldest months of winter you should expect an average low temperature of 20°F.

It's important to remember that USDA zone info for Warrenton is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Warrenton you get a frost after February 15 so make sure that you are ready to cover your streptocarpella if you have a surprise late frost.

USDA Zone Info for Warrenton

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 Warrenton

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