The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of making a decision about when to plant ageratum is to refer to the USDA zone info for Bossier City.

Planting Calendar for Ageratum

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

It's probably not a good idea to plant ageratum until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant ageratum in Bossier City 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 grow to maturity. 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 Bossier City. You can expect an average low temperature of 15°F in the coldest months of winter.

Always keep in mind that USDA zone info for Bossier City is an average and the actual date of last frost changes from year to year. Since half of the time in Bossier City it frosts late in the year after March 15 be ready to cover your ageratum if you have one of those late frosts.

USDA Zone Info for Bossier City

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 Bossier City

You may be interested in your other planting guides for Bossier City.