The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Jackson you can determine when you can plant celosia by looking at the USDA zone info.

Planting Calendar for Celosia

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

Since celosia require warm weather you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant celosia in Jackson 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 celosia and expect a good harvest is probably August. Any later than that and your celosia may not have a chance to grow to maturity. Starting your celosia indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Jackson the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -20°F.

Since the USDA zone info for Jackson is an average the actual date of last frost changes from year to year. Half of the time in Jackson you get a frost after April 15 so always be ready to cover your celosia if you have one of those late frosts.

USDA Zone Info for Jackson

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

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

Plants to Grow in Jackson

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