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.

The first chance to plant amaranthus in Harrisonburg can be determined by checking out the USDA zone info.

Planting Calendar for Amaranthus

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

Since amaranthus are not cold tolerant you need to wait until after the last frost before you can plant them.

The earliest that you can plant amaranthus in Harrisonburg 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. You probably don't want to wait any later than that or else your amaranthus may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your amaranthus indoors.

Last Frost Date

The average date of last frost is April 15 in Harrisonburg. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Harrisonburg may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Harrisonburg there is a last frost after April 15 be ready to cover your amaranthus in the event of a late frost.

USDA Zone Info for Harrisonburg

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 Harrisonburg

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