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

By looking at the USDA zone info for West Lafayette you should be able to determine when you can plant celosia.

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 you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant celosia in West Lafayette 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. If you wait any later than that and your celosia may not have a chance to fully mature. If you are starting your celosia indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in West Lafayette. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for West Lafayette is just an average the actual date of last frost changes from year to year. Since half of the time in West Lafayette last frost occurs after April 15 be ready to protect your celosia in the event of a surprise late frost.

USDA Zone Info for West Lafayette

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 West Lafayette

You may be interested in your other planting guides for West Lafayette.