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.

A common way of estimating when it's possible to plant ageratum is to use the USDA zone info for Carl Junction.

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 it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant ageratum in Carl Junction 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 little bit earlier by starting your ageratum indoors.

Last Frost Date

On average the last frost is on April 15 in Carl Junction. It might get as low as -5°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Carl Junction 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 Carl Junction there is a last frost after April 15 so make sure that you are ready to protect your ageratum if you have one of those late frosts.

USDA Zone Info for Carl Junction

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Carl Junction

You may be interested in your other planting guides for Carl Junction.