When to Plant Nigella in Belle Plaine, MN

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.

The best time to plant nigella in Belle Plaine can be determined by checking out the USDA zone info.

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Planting Calendar for Nigella

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

Since nigella are very cold tolerant you can plant them earlier in the year than plants that are more sensitive to the cold.

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

The earliest that you can plant nigella in Belle Plaine 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 nigella and expect a good harvest is probably August. If you wait any later than that and your nigella may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your nigella indoors.

Last Frost Date

In Belle Plaine the average date of last frost happens on May 15. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Belle Plaine may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Belle Plaine you get a frost after May 15 be ready to protect your nigella if you have a late frost.

USDA Zone Info for Belle Plaine

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-25°F
Highest Expected Low-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Belle Plaine

You may be interested in your other planting guides for Belle Plaine.