One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By looking at the USDA zone info for Lawrence you will be able to determine when you can plant ageratum.

Planting Calendar for Ageratum

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

Since ageratum are not cold tolerant you really should wait until after the last frost before you can plant them.

The earliest that you can plant ageratum in Lawrence 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 few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Lawrence. It might get as low as 5°F during the coldest months of winter.

It's important to remember that USDA zone info for Lawrence may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Lawrence you get a frost after April 15 so make sure that you are ready to cover your ageratum in the event of one of those late frosts.

USDA Zone Info for Lawrence

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Lawrence

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