The USDA Zone info is a great tool for gardeners to help us estimate 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.

In Bridgeport you can estimate when to plant onions by using the USDA zone info.

Planting Calendar for Onions

Frost tolerance for onions:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Onions do ok in cold weather which means that you can plant them quite a bit earlier in the year than more sensitive plants.

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

The last month that you can plant onions and expect a good harvest is probably September. If you wait any later than that and your onions may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your onions indoors.

Last Frost Date

The average date of last frost is April 15 in Bridgeport. In the coldest months of winter you should expect an average low temperature of 0°F.

Just be sure to remember that USDA zone info for Bridgeport may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Bridgeport last frost occurs after April 15 so be sure to be ready to protect your onions if you have one of those late frosts.

USDA Zone Info for Bridgeport

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Bridgeport

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