Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Sanibel should be reffered to in order to estimate when to plant romanesco.

Planting Calendar for Romanesco

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

Romanesco do well in moderate cold which tells us that you can plant them earlier than plants that are more sensitive to the cold.

The earliest that you can plant romanesco in Sanibel 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 October. Any later than that and your romanesco may not have a chance to grow to maturity. Starting your romanesco indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Sanibel. You should expect an average low temperature of 30°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Sanibel is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Sanibel last frost occurs after January 31 so be sure to be ready to cover your romanesco in the event of a late frost.

USDA Zone Info for Sanibel

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Sanibel

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