One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when to plant amaranthus by checking out the USDA zone info for Marion.

Planting Calendar for Amaranthus

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

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

The earliest that you can plant amaranthus in Marion is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant amaranthus and expect a good harvest is probably August. Any later than that and your amaranthus may not have a chance to fully mature. You can get started a little bit earlier by starting your amaranthus indoors.

Last Frost Date

In Marion the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Marion is just an average the actual date of last frost changes from year to year. Since half of the time in Marion it frosts late in the year after April 15 be ready to cover your amaranthus if you have one of those late frosts.

USDA Zone Info for Marion

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Marion

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