One of the best tools that you have as gardeners to help us determine 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 way of getting a good idea when it's possible to plant alternanthera is to look at the USDA zone info for Santa Fe Springs.

Planting Calendar for Alternanthera

Frost tolerance for alternanthera:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Alternanthera require warm weather which tells us that it's important to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant alternanthera in Santa Fe Springs 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 alternanthera and expect a good harvest is probably September. Any later than that and your alternanthera may not have a chance to fully mature. You can get started a few weeks earlier by starting your alternanthera indoors.

Last Frost Date

The average date of last frost is January 31 in Santa Fe Springs. It might get as low as 35°F during the coldest months of winter.

Since the USDA zone info for Santa Fe Springs is an average the actual date of last frost is different every year. Half of the time in Santa Fe Springs there is a last frost after January 31 so always be ready to cover your alternanthera if you have a late frost.

USDA Zone Info for Santa Fe Springs

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 Santa Fe Springs

You may be interested in your other planting guides for Santa Fe Springs.