Before planting it is a good idea to find your USDA Zone info to determine 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.

By checking out the USDA zone info for Casper it's a good idea to estimate when it's the best time to plant black pepper.

Planting Calendar for Black pepper

Frost tolerance for black pepper:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's probably not a good idea to plant black pepper until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant black pepper in Casper 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 black pepper and expect a good harvest is probably August. Any later than that and your black pepper may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your black pepper indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Casper. You can expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Casper is an average the actual date of last frost will vary from year to year. Half of the time in Casper you get surprised by a frost after April 15 so always be ready to protect your black pepper if you have a late frost.

USDA Zone Info for Casper

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Casper

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