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.

By referring to the USDA zone info for Whiteville you will be able to figure out when it's a good idea to plant ageratum.

Planting Calendar for Ageratum

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

Since ageratum 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 ageratum in Whiteville 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 ageratum and expect a good harvest is probably August. You probably don't want to wait any later than that or else your ageratum may not have a chance to really do well. If you are starting your ageratum indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on March 15 in Whiteville. You should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Whiteville may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Whiteville you get a frost after March 15 so be sure to be ready to cover your ageratum if you have a late frost.

USDA Zone Info for Whiteville

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

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

Plants to Grow in Whiteville

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