The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Bessemer can be reviewed to estimate when it's a good idea to plant bunching onions.

Planting Calendar for Bunching Onions

Frost tolerance for bunching onions:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant bunching onions a bit earlier in the year because they do ok in moderate cold.

The earliest that you can plant bunching onions in Bessemer is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant bunching onions and expect a good harvest is probably August. Any later than that and your bunching onions may not have a chance to fully mature. You can get started a little bit earlier by starting your bunching onions indoors.

Last Frost Date

The average date of last frost is March 15 in Bessemer. In the coldest months of winter you can expect an average low temperature of 10°F.

Remember that USDA zone info for Bessemer is just an average and the actual date of last frost is different every year. Half of the time in Bessemer last frost occurs after March 15 so be sure to be ready to protect your bunching onions if you have a surprise late frost.

USDA Zone Info for Bessemer

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Bessemer

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