The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Charlotte you can determine when it's the best time to plant sweet sultan by using the USDA zone info.

Planting Calendar for Sweet Sultan

Frost tolerance for sweet sultan:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Sweet Sultan are barely cold tolerant which means that you can start planting them slightly earlier than other frost tender plants.

The earliest that you can plant sweet sultan in Charlotte is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant sweet sultan and expect a good harvest is probably August. You probably don't want to wait any later than that or else your sweet sultan may not have a chance to grow to maturity. Starting your sweet sultan indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Charlotte. You can expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that USDA zone info for Charlotte is an average and the actual date of last frost will vary from year to year. Since half of the time in Charlotte you get surprised by a frost after April 15 be ready to cover your sweet sultan if you have a late frost.

USDA Zone Info for Charlotte

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Charlotte

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