One of the first steps you take when you are getting a good idea 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.

A common way of getting a good idea when you can plant romanesco is to check out the USDA zone info for Key Biscayne.

Planting Calendar for Romanesco

Frost tolerance for romanesco:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Romanesco can survive in mild cold which means that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant romanesco in Key Biscayne 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 romanesco and expect a good harvest is probably November. If you wait any later than that and your romanesco may not have a chance to really do well. You can get started a few weeks earlier by starting your romanesco indoors.

Last Frost Date

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

Remember that USDA zone info for Key Biscayne is just an average and the actual date of last frost will vary from year to year. Since it never frosts in Key Biscayne you do not have to be ready to protect your romanesco if you have one of those late frosts.

USDA Zone Info for Key Biscayne

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 Key Biscayne

You may be interested in your other planting guides for Key Biscayne.