The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Oldsmar you can estimate when it's the best time to plant mustard greens by reviewing the USDA zone info.

Planting Calendar for Mustard greens

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

Mustard greens are moderately cold tolerant which tells us that you can start planting them earlier than more sensitive plants.

The earliest that you can plant mustard greens in Oldsmar 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 greens and expect a good harvest is probably October. You probably don't want to wait any later than that or else your mustard greens may not have a chance to fully mature. If you are starting your mustard greens indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Oldsmar. It might get as low as 25°F during the coldest months of winter.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Oldsmar and it changes from year to year. Since half of the time in Oldsmar there is a last frost after February 15 be ready to cover your mustard greens if you have a late frost.

USDA Zone Info for Oldsmar

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Oldsmar

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