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.

One way of figuring out when to plant celosia is to examine the USDA zone info for Hilliard.

Planting Calendar for Celosia

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

It's probably a bad idea to plant celosia until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant celosia in Hilliard 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 couple of weeks earlier by starting your celosia indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Hilliard. You can expect an average low temperature of -10°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Hilliard is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Hilliard it frosts late in the year after April 15 be ready to cover your celosia if you have a late frost.

USDA Zone Info for Hilliard

Here is the info for USDA Zone 6a.

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

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Hilliard

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