Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant salpiglossis in Christiansburg should be estimated by using the USDA zone info.

Planting Calendar for Salpiglossis

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

You can not plant salpiglossis until after the last frost has passed because they require warm weather.

The earliest that you can plant salpiglossis in Christiansburg 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 salpiglossis and expect a good harvest is probably August. Any later than that and your salpiglossis may not have a chance to fully mature. If you are starting your salpiglossis indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Christiansburg. In the coldest months of winter you should expect an average low temperature of -5°F.

Remember that USDA zone info for Christiansburg is just an average and the actual date of last frost changes from year to year. Half of the time in Christiansburg last frost occurs after April 15 so be sure to be ready to cover your salpiglossis in the event of one of those late frosts.

USDA Zone Info for Christiansburg

Here is the info for USDA Zone 6b.

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

Plants to Grow in Christiansburg

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