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

In Alexandria you can estimate when it's the best time to plant ageratum by reviewing the USDA zone info.

Planting Calendar for Ageratum

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

Since ageratum require warm weather you must wait until after the last frost before you can plant them.

The earliest that you can plant ageratum in Alexandria 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. You probably don't want to wait any later than that or else 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

In Alexandria the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 5°F.

Since the USDA zone info for Alexandria may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Alexandria it frosts late in the year after April 15 be ready to protect your ageratum if you have a surprise late frost.

USDA Zone Info for Alexandria

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 Alexandria

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