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

You can estimate when to plant salpiglossis in Clarksville 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 when the weather gets warmer.

It's probably not a good idea to plant salpiglossis until after the last frost because they require warm weather.

The earliest that you can plant salpiglossis in Clarksville 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. If you wait any later than that and your salpiglossis may not have a chance to really do well. You can get started a few weeks earlier by starting your salpiglossis indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Clarksville. In the coldest months of winter you can expect an average low temperature of 0°F.

Just be sure to remember that USDA zone info for Clarksville is just an average and the actual date of last frost is different every year. Half of the time in Clarksville there is a last frost after April 15 so just be sure to be ready to cover your salpiglossis in the event of one of those late frosts.

USDA Zone Info for Clarksville

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 Clarksville

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