The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for Pismo Beach it's a good idea to estimate when it's the best time to plant alternaria.

Planting Calendar for Alternaria

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

You really shouldn't plant alternaria until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant alternaria in Pismo Beach 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. If you are starting your alternaria indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost is on January 31 in Pismo Beach. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Pismo Beach is just an average the actual date of last frost will vary from year to year. Since half of the time in Pismo Beach you get surprised by a frost after January 31 be ready to cover your alternaria in the event of a surprise late frost.

USDA Zone Info for Pismo Beach

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Pismo Beach

You may be interested in your other planting guides for Pismo Beach.