One of the best tools that you have as gardeners to help us figure out 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.

You should be able to figure out when you can plant ageratum by using the USDA zone info for Hialeah.

Planting Calendar for Ageratum

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

You can not plant ageratum until after the last frost because they are not cold tolerant.

The earliest that you can plant ageratum in Hialeah is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant ageratum and expect a good harvest is probably September. Any later than that and your ageratum may not have a chance to grow to maturity. You can get started a little bit earlier by starting your ageratum indoors.

Last Frost Date

The average date of last frost is January 31 in Hialeah. It might get as low as 35°F during the coldest months of winter.

Since the USDA zone info for Hialeah may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Hialeah last frost occurs after January 31 so make sure that you are ready to cover your ageratum in the event of a late frost.

USDA Zone Info for Hialeah

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Hialeah

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