One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to figure out when it's a good idea to plant turnips by looking at the USDA zone info for Manteca.

Planting Calendar for Turnips

Frost tolerance for turnips:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since turnips do not do well in cold weather you need to wait until after the last frost has passed before you can plant them.

The earliest that you can plant turnips in Manteca is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant turnips and expect a good harvest is probably September. Any later than that and your turnips may not have a chance to fully mature. You can get started a little bit earlier by starting your turnips indoors.

Last Frost Date

The average date of last frost is February 15 in Manteca. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Manteca may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Manteca you get surprised by a frost after February 15 be ready to protect your turnips if you have one of those late frosts.

USDA Zone Info for Manteca

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 Manteca

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