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

The earliest that you can plant celosia in Florissant can be determined 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 when the weather gets warmer.

Since celosia are not cold tolerant it is necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant celosia in Florissant 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 fully mature. You can get started a couple of weeks earlier by starting your celosia indoors.

Last Frost Date

The average date of last frost is April 15 in Florissant. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Florissant is just an average the actual date of last frost will vary from year to year. Half of the time in Florissant you get a frost after April 15 so be sure to be ready to cover your celosia if you have a late frost.

USDA Zone Info for Florissant

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 Florissant

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