The USDA Zone info is a great tool for gardeners to help us determine 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.

The earliest that you can plant gerbera in San Diego should be estimated by reviewing the USDA zone info.

Planting Calendar for Gerbera

Frost tolerance for gerbera:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Gerbera are barely cold tolerant which means that you can get them planted just a bit earlier than other plants that might not handle the cold.

The earliest that you can plant gerbera 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 gerbera and expect a good harvest is probably September. Any later than that and your gerbera may not have a chance to grow to maturity. If you are starting your gerbera indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in San Diego. In the coldest months of winter you can expect an average low temperature of 35°F.

It's important to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for San Diego and it is different every year. Since half of the time in San Diego last frost occurs after January 31 be ready to cover your gerbera in the event of a late frost.

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.