Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of estimating when it's possible to plant amaranthus is to check out the USDA zone info for Willows.

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 important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant amaranthus in Willows 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 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. Starting your amaranthus indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Willows. You can expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Willows and it is different every year. Half of the time in Willows you get surprised by a frost after February 15 so always be ready to protect your amaranthus if you have one of those late frosts.

USDA Zone Info for Willows

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Willows

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