One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

One way of determining when it's a good idea to plant celosia is to consult the USDA zone info for Belle Fourche.

Planting Calendar for Celosia

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

You really shouldn't plant celosia until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant celosia in Belle Fourche is May. However, you really should wait until June 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 grow to maturity. You can get started a couple of weeks earlier by starting your celosia indoors.

Last Frost Date

The average date of last frost is May 15 in Belle Fourche. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Belle Fourche is not always accurate the actual date of last frost changes from year to year. Half of the time in Belle Fourche you get surprised by a frost after May 15 so make sure that you are ready to cover your celosia if you have one of those late frosts.

USDA Zone Info for Belle Fourche

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Belle Fourche

You may be interested in your other planting guides for Belle Fourche.