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.

It's possible to estimate when to plant streptocarpella by referring to the USDA zone info for Roanoke.

Planting Calendar for Streptocarpella

Frost tolerance for streptocarpella:	Not tolerant of frost.
When to plant:	After the last frost.

You should not plant streptocarpella until after the last frost because they are not cold tolerant.

The earliest that you can plant streptocarpella in Roanoke 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. You probably don't want to wait any later than that or else your streptocarpella may not have a chance to fully mature. You can get started a few weeks earlier by starting your streptocarpella indoors.

Last Frost Date

On average the last frost is on April 15 in Roanoke. It might get as low as 5°F during the coldest months of winter.

It's important to remember that USDA zone info for Roanoke may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Roanoke you get a frost after April 15 be ready to cover your streptocarpella if you have a surprise late frost.

USDA Zone Info for Roanoke

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Roanoke

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