frostdate name logo in white
frostdate name logo in white

When to Plant Alternanthera in Encinitas, CA

Before planting it is a good idea to find your USDA Zone info to figure out 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.

A way of making a decision about when it's possible to plant alternanthera is to examine the USDA zone info for Encinitas.


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 the last frost has passed before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant alternanthera
Possibly ok, but a risky time to plant alternanthera
Probably not a good time to plant alternanthera

The earliest that you can plant alternanthera in Encinitas 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. You probably don't want to wait any later than that or else your alternanthera may not have a chance to fully mature. If you are starting your alternanthera indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost is on January 31 in Encinitas. You should expect an average low temperature of 30°F in the coldest months of winter.

Keep in mind that USDA zone info for Encinitas may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Encinitas you get a frost after January 31 so just be sure to be ready to cover your alternanthera if you have a surprise late frost.

USDA Zone Info for Encinitas

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 Low30°F
Highest Expected Low35°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 Encinitas

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