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.

A common way of figuring out when it's possible to plant alternaria is to use the USDA zone info for Los Banos.

Planting Calendar for Alternaria

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

Since alternaria do not do well in cold weather you must wait until after the last frost has passed before you can plant them.

The earliest that you can plant alternaria in Los Banos is March. However, you really should wait until April 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. If you are starting your alternaria indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Los Banos. It might get as low as 20°F during the coldest months of winter.

Remember that USDA zone info for Los Banos is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Los Banos you get a frost after February 15 be ready to protect your alternaria in the event of a surprise late frost.

USDA Zone Info for Los Banos

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Los Banos

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