One of the first steps you take when you are figuring out your gardening schedule is find your 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.

In Roswell you can figure out when to 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 are not cold tolerant you have to wait until after the last frost before you can plant them.

The earliest that you can plant celosia in Roswell 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 grow to maturity. Starting your celosia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Roswell. You should expect an average low temperature of 5°F in the coldest months of winter.

Remember that USDA zone info for Roswell is an average and the actual date of last frost is different every year. Half of the time in Roswell you get surprised by a frost after April 15 so always be ready to cover your celosia if you have a late frost.

USDA Zone Info for Roswell

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Roswell

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