One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to figure out when it's possible to plant salpiglossis by using the USDA zone info for Cornelius.

Planting Calendar for Salpiglossis

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

Salpiglossis do not do well in cold weather which tells us that it is necessary to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant salpiglossis in Cornelius 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 really do well. You can get started a little bit earlier by starting your salpiglossis indoors.

Last Frost Date

On average the last frost is on April 15 in Cornelius. In the coldest months of winter you should expect an average low temperature of 5°F.

Remember that USDA zone info for Cornelius may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Cornelius it frosts late in the year after April 15 so just be sure to be ready to protect your salpiglossis in the event of a late frost.

USDA Zone Info for Cornelius

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 Cornelius

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