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.

In Gilmer you can estimate when to plant ageratum by checking out the USDA zone info.

Planting Calendar for Ageratum

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

It's probably a bad idea to plant ageratum until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant ageratum in Gilmer 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. Any later than that and your ageratum may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your ageratum indoors.

Last Frost Date

On average the last frost has passed is on March 15 in Gilmer. It might get as low as 10°F during the coldest months of winter.

Remember that USDA zone info for Gilmer is not always accurate and the actual date of last frost changes from year to year. Half of the time in Gilmer last frost occurs after March 15 so always be ready to protect your ageratum if you have one of those late frosts.

USDA Zone Info for Gilmer

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 Gilmer

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