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.

In Torrance you can determine when it's a good idea to plant napa valley fern by reviewing the USDA zone info.

Planting Calendar for Napa Valley Fern

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

Since napa valley fern require warm weather you need to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant napa valley fern in Torrance 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 napa valley fern and expect a good harvest is probably September. Any later than that and your napa valley fern may not have a chance to really do well. Starting your napa valley fern indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on January 31 in Torrance. You can expect an average low temperature of 35°F in the coldest months of winter.

Keep in mind that USDA zone info for Torrance may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Torrance you get a frost after January 31 so make sure that you are prepared to cover your napa valley fern in the event of a surprise late frost.

USDA Zone Info for Torrance

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Torrance

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