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.

In Hyrum you can determine when it's the best time to plant celosia 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.

It's not a good idea to plant celosia until after the last frost because they require warm weather.

The earliest that you can plant celosia in Hyrum 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 really do well. You can get started a couple of weeks earlier by starting your celosia indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Hyrum. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Hyrum is just an average the actual date of last frost will vary from year to year. Half of the time in Hyrum last frost occurs after April 15 so make sure that you are prepared to protect your celosia if you have one of those late frosts.

USDA Zone Info for Hyrum

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 Hyrum

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