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.

You should be able to figure out when it's the best time to plant ageratum by referring to the USDA zone info for Cushing.

Planting Calendar for Ageratum

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

It's not a good idea to plant ageratum until after the last frost because they are not cold tolerant.

The earliest that you can plant ageratum in Cushing 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. You can get started a couple of weeks earlier by starting your ageratum indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Cushing. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for Cushing is just an average the actual date of last frost is different every year. Since half of the time in Cushing there is a last frost after April 15 be ready to cover your ageratum if you have a late frost.

USDA Zone Info for Cushing

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Cushing

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