When to Plant Mustard greens in Wilmington, IL

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

You can figure out when it's possible to plant mustard greens in Wilmington by using the USDA zone info.

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Planting Calendar for Mustard greens

Frost tolerance for mustard greens: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Mustard greens do ok in moderate cold which tells us that you can plant them just a bit earlier in the year than plants that are more sensitive to the cold.

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

The earliest that you can plant mustard greens in Wilmington 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 mustard greens and expect a good harvest is probably September. Any later than that and your mustard greens may not have a chance to really do well. You can get started a few weeks earlier by starting your mustard greens indoors.

Last Frost Date

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

Since the USDA zone info for Wilmington may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Wilmington it frosts late in the year after April 15 be ready to cover your mustard greens if you have a surprise late frost.

USDA Zone Info for Wilmington

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Wilmington

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