Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when it's the best time to plant basil in Cary by looking at the USDA zone info.

Planting Calendar for Basil

Frost tolerance for basil:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You really shouldn't plant basil until after the last frost because they are not cold tolerant.

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

Last Frost Date

The average date of last frost is April 15 in Cary. It might get as low as 5°F during the coldest months of winter.

It's important to remember that USDA zone info for Cary is an average and the actual date of last frost changes from year to year. Half of the time in Cary you get surprised by a frost after April 15 so always be ready to cover your basil in the event of a surprise late frost.

USDA Zone Info for Cary

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 Cary

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