One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Bridgeport you can estimate when it's possible to plant nigella by looking at the USDA zone info.

Planting Calendar for Nigella

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

Nigella do well in a bit of cold which means that you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant nigella 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 nigella and expect a good harvest is probably September. If you wait any later than that and your nigella may not have a chance to really do well. If you are starting your nigella indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for Bridgeport is an average the actual date of last frost is different every year. Since half of the time in Bridgeport there is a last frost after April 15 be ready to protect your nigella in the event of a surprise late frost.

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.