When to Plant Mustard in Key West, FL

One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant mustard in Key West can be figured out by referring to the USDA zone info.


Planting Calendar for Mustard

Frost tolerance for mustard: Not tolerant of frost.
When to plant: After all chance of frost has passed.

It's probably a bad idea to plant mustard until after the last frost when the weather gets warmer because they require warm weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant mustard
Possibly ok, but a risky time to plant mustard
Probably not a good time to plant mustard

The earliest that you can plant mustard in Key West 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 mustard and expect a good harvest is probably November. You probably don't want to wait any later than that or else your mustard may not have a chance to really do well. Starting your mustard indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Key West it never frosts. You can expect an average low temperature of 45°F in the coldest months of winter.

Always keep in mind that USDA zone info for Key West may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since it never frosts in Key West you do not have to be ready to protect your mustard in the event of one of those late frosts.

USDA Zone Info for Key West

Here is the info for USDA Zone 11b.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low45°F
Highest Expected Low50°F

This means that on a really cold year, the coldest it will get is 45°F. On most years you should be prepared to experience lows near 50°F.

Plants to Grow in Key West

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