One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. 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 alternanthera in Carrboro can be figured out by looking at the USDA zone info.

Planting Calendar for Alternanthera

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

Since alternanthera require warm weather you really should wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant alternanthera in Carrboro 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 alternanthera and expect a good harvest is probably August. Any later than that and your alternanthera may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your alternanthera indoors.

Last Frost Date

The average date of last frost is April 15 in Carrboro. You can expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for Carrboro is just an average the actual date of last frost is different every year. Half of the time in Carrboro you get surprised by a frost after April 15 so make sure that you are prepared to protect your alternanthera if you have a late frost.

USDA Zone Info for Carrboro

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 Carrboro

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