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.

One way of figuring out when it's the best time to plant amaranthus is to check out the USDA zone info for Sierra Madre.

Planting Calendar for Amaranthus

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

Amaranthus are not cold tolerant which tells us that you really should wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant amaranthus in Sierra Madre 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 amaranthus and expect a good harvest is probably September. Any later than that and your amaranthus may not have a chance to really do well. You can get started a little bit earlier by starting your amaranthus indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in Sierra Madre. You can expect an average low temperature of 30°F in the coldest months of winter.

Always keep in mind that USDA zone info for Sierra Madre is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Sierra Madre last frost occurs after January 31 so always be ready to cover your amaranthus in the event of one of those late frosts.

USDA Zone Info for Sierra Madre

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 Sierra Madre

You may be interested in your other planting guides for Sierra Madre.