Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of figuring out when it's the best time to plant celosia is to check out the USDA zone info for Dekalb.

Planting Calendar for Celosia

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

Since celosia require warm weather it's necessary to wait until after the last frost before you can plant them.

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

Last Frost Date

The average date of last frost is April 15 in Dekalb. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Dekalb is an average the actual date of last frost is different every year. Since half of the time in Dekalb there is a last frost after April 15 be ready to cover your celosia in the event of a late frost.

USDA Zone Info for Dekalb

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Dekalb

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