Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to figure out when you can plant ageratum by referring to the USDA zone info for Rockdale.

Planting Calendar for Ageratum

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

Since ageratum require warm weather it's important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant ageratum in Rockdale 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 fully mature. You can get started a few weeks earlier by starting your ageratum indoors.

Last Frost Date

The average date of last frost is March 15 in Rockdale. In the coldest months of winter you should expect an average low temperature of 15°F.

It's important to remember that USDA zone info for Rockdale may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Rockdale last frost occurs after March 15 so be sure to be ready to protect your ageratum in the event of a surprise late frost.

USDA Zone Info for Rockdale

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Rockdale

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