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When to Plant Bunching Onions in Washington Court House, OH

The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Washington Court House you can figure out when to plant bunching onions by using the USDA zone info.


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.

Bunching Onions are barely cold tolerant which means that you can plant them slightly earlier than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant bunching onions
Possibly ok, but a risky time to plant bunching onions
Probably not a good time to plant bunching onions

The earliest that you can plant bunching onions in Washington Court House 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 grow to maturity. Starting your bunching onions indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Washington Court House. You should expect an average low temperature of -10°F in the coldest months of winter.

Keep in mind that USDA zone info for Washington Court House may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Washington Court House you get a frost after April 15 be ready to cover your bunching onions in the event of a surprise late frost.

USDA Zone Info for Washington Court House

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 Washington Court House

You may be interested in your other planting guides for Washington Court House.