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 San Diego you can estimate when it's possible to plant dallas fern by checking out the USDA zone info.

Planting Calendar for Dallas Fern

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

It's not a good idea to plant dallas fern until after the last frost has passed because they do not do well in cold weather.

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

Last Frost Date

On average the last frost is on January 31 in San Diego. You should expect an average low temperature of 35°F in the coldest months of winter.

Since the USDA zone info for San Diego may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in San Diego last frost occurs after January 31 so make sure that you are ready to cover your dallas fern if you have one of those late frosts.

USDA Zone Info for San Diego

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 San Diego

You may be interested in your other planting guides for San Diego.