One of the best tools that you have as gardeners to help us determine 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.

In Bristow you can estimate when it's a good idea to 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 all chance of frost has passed.

It's not a good idea to plant streptocarpella until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant streptocarpella in Bristow 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 grow to maturity. If you are starting your streptocarpella indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Bristow. You should expect an average low temperature of 0°F in the coldest months of winter.

Remember that USDA zone info for Bristow is an average and the actual date of last frost is different every year. Since half of the time in Bristow it frosts late in the year after April 15 be ready to cover your streptocarpella if you have one of those late frosts.

USDA Zone Info for Bristow

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Bristow

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