One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

You should be able to figure out when to plant hardy asters by checking out the USDA zone info for Miami.

Planting Calendar for Hardy Asters

Frost tolerance for hardy asters:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant hardy asters a bit earlier in the year because they are one of those plants that can tolerate a tiny bit of cold weather.

The earliest that you can plant hardy asters in Miami is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant hardy asters and expect a good harvest is probably November. If you wait any later than that and your hardy asters may not have a chance to really do well. Starting your hardy asters indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Miami it never frosts. You can expect an average low temperature of 40°F in the coldest months of winter.

Just be sure to remember that the actual date of last frost is an average because it is based on the USDA zone info for Miami and it changes from year to year. Since it never frosts in Miami you do not have to be ready to protect your hardy asters if you have a surprise late frost.

USDA Zone Info for Miami

Here is the info for USDA Zone 11a.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	40°F
Highest Expected Low	45°F

This means that on a really cold year, the coldest it will get is 40°F. On most years you should be prepared to experience lows near 45°F.

Plants to Grow in Miami

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