One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

In Whittier you can figure out when it's a good idea to plant turnips by checking out the USDA zone info.

Planting Calendar for Turnips

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

Turnips are not cold tolerant which tells us that you need to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant turnips in Whittier is February. However, you really should wait until March 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. If you wait any later than that and your turnips may not have a chance to fully mature. If you are starting your turnips indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Whittier the average date of last frost happens on January 31. You can expect an average low temperature of 30°F in the coldest months of winter.

Remember that USDA zone info for Whittier is not always accurate and the actual date of last frost changes from year to year. Half of the time in Whittier last frost occurs after January 31 so make sure that you are ready to protect your turnips if you have one of those late frosts.

USDA Zone Info for Whittier

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 Whittier

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