When to Plant Amaranthus in Zone 11a

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.

You can figure out when to plant amaranthus in Zone 11a by using the USDA zone info.


Planting Calendar for Amaranthus

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

Since amaranthus require warm weather it is necessary to wait until after the last frost has passed before you can plant them.

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

The earliest that you can plant amaranthus in Zone 11a is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant amaranthus and expect a good harvest is probably November. You probably don't want to wait any later than that or else your amaranthus may not have a chance to really do well. Starting your amaranthus indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Zone 11a it never frosts. You should expect an average low temperature of 40°F in the coldest months of winter.

It's important to remember that USDA zone info for Zone 11a is an average and the actual date of last frost is different every year. Since it never frosts in Zone 11a you do not have to be ready to cover your amaranthus if you have one of those late frosts.

USDA Zone Info for Zone 11a

Here is the info for USDA Zone 11a.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low40°F
Highest Expected Low45°F

This means that on a really cold year, the coldest it will get is 40°F. On most years you should be prepared to experience lows near 45°F.

Plants to Grow in Zone 11a

You may be interested in your other planting guides for Zone 11a.