Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of figuring out when it's the best time to plant bunching onions is to look at the USDA zone info for Aiken.

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 are barely cold tolerant.

The earliest that you can plant bunching onions in Aiken 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. If you wait any later than that and your bunching onions may not have a chance to really do well. Starting your bunching onions indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Aiken. You should expect an average low temperature of 10°F in the coldest months of winter.

Keep in mind that USDA zone info for Aiken is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Aiken there is a last frost after March 15 be ready to cover your bunching onions if you have a surprise late frost.

USDA Zone Info for Aiken

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 Aiken

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