Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By reviewing the USDA zone info for Los Angeles you will be able to determine when it's possible to plant alternaria.

Planting Calendar for Alternaria

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

Since alternaria are not cold tolerant you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant alternaria in Los Angeles 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 alternaria and expect a good harvest is probably September. You probably don't want to wait any later than that or else your alternaria may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your alternaria indoors.

Last Frost Date

The average date of last frost is January 31 in Los Angeles. In the coldest months of winter you should expect an average low temperature of 35°F.

Always keep in mind that USDA zone info for Los Angeles may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Los Angeles you get surprised by a frost after January 31 be ready to protect your alternaria in the event of a surprise late frost.

USDA Zone Info for Los Angeles

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 Los Angeles

You may be interested in your other planting guides for Los Angeles.