The USDA Zone info is a great tool for gardeners to help us determine 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.

The best time to plant celosia in Zionsville should be estimated by referring to the USDA zone info.

Planting Calendar for Celosia

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

Since celosia are not cold tolerant it's important to wait until after the last frost before you can plant them.

The earliest that you can plant celosia in Zionsville 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. Starting your celosia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Zionsville. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Zionsville is not always accurate the actual date of last frost is different every year. Since half of the time in Zionsville there is a last frost after April 15 be ready to cover your celosia in the event of one of those late frosts.

USDA Zone Info for Zionsville

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 Zionsville

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