When to Plant Black pepper in Alton, IL

One of the best tools that you have as gardeners to help us figure out 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.

The first opportunity to plant black pepper in Alton can be determined by looking at the USDA zone info.


Planting Calendar for Black pepper

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

You should not plant black pepper until after all chance of frost has passed because they require warm weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant black pepper
Possibly ok, but a risky time to plant black pepper
Probably not a good time to plant black pepper

The earliest that you can plant black pepper in Alton 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. If you wait any later than that and your black pepper may not have a chance to fully mature. If you are starting your black pepper indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Alton the average date of last frost happens on April 15. You can expect an average low temperature of -10°F in the coldest months of winter.

Keep in mind that USDA zone info for Alton may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Alton you get a frost after April 15 so be sure to be ready to cover your black pepper in the event of one of those late frosts.

USDA Zone Info for Alton

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Alton

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