The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Henderson you can estimate when it's a good idea to plant amaranthus by looking at the USDA zone info.

Planting Calendar for Amaranthus

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

You can not plant amaranthus until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant amaranthus in Henderson 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. If you wait any later than that and your amaranthus may not have a chance to fully mature. You can get started a few weeks earlier by starting your amaranthus indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Henderson. In the coldest months of winter you should expect an average low temperature of 15°F.

Since the USDA zone info for Henderson may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Henderson you get surprised by a frost after March 15 be ready to cover your amaranthus in the event of one of those late frosts.

USDA Zone Info for Henderson

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Henderson

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