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.

By looking at the USDA zone info for Friendswood 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.

Since alternaria require warm weather you need to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant alternaria in Friendswood 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. If you wait any later than that and 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 when the weather gets warmer is on February 15 in Friendswood. You can expect an average low temperature of 20°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Friendswood is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Friendswood there is a last frost after February 15 be ready to protect your alternaria in the event of a late frost.

USDA Zone Info for Friendswood

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 Friendswood

You may be interested in your other planting guides for Friendswood.