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

In White Hall you can determine when you can plant ageratum by looking at the USDA zone info.

Planting Calendar for Ageratum

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

Since ageratum are not cold tolerant 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 White Hall 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. If you wait any later than that and your ageratum may not have a chance to fully mature. Starting your ageratum indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in White Hall. It might get as low as 10°F during the coldest months of winter.

Always keep in mind that USDA zone info for White Hall is an average and the actual date of last frost changes from year to year. Since half of the time in White Hall it frosts late in the year after March 15 be ready to protect your ageratum if you have a surprise late frost.

USDA Zone Info for White Hall

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 White Hall

You may be interested in your other planting guides for White Hall.