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.

You should be able to determine when you can plant turnips by referring to the USDA zone info for Mill Valley.

Planting Calendar for Turnips

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

You really shouldn't plant turnips until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant turnips in Mill Valley 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. You probably don't want to wait any later than that or else 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 few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Mill Valley. It might get as low as 30°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Mill Valley is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Mill Valley it frosts late in the year after January 31 be ready to protect your turnips in the event of one of those late frosts.

USDA Zone Info for Mill Valley

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 Mill Valley

You may be interested in your other planting guides for Mill Valley.