When to Plant Twinspur in Machesney Park, IL

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

By using the USDA zone info for Machesney Park you will be able to figure out when to plant twinspur.

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Planting Calendar for Twinspur

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

Since twinspur are moderately cold tolerant you can plant them a little bit earlier in the year than other frost tender plants.

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

The earliest that you can plant twinspur in Machesney Park 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 twinspur and expect a good harvest is probably September. You probably don't want to wait any later than that or else your twinspur may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your twinspur indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Machesney Park. In the coldest months of winter you can expect an average low temperature of -15°F.

Keep in mind that USDA zone info for Machesney Park may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Machesney Park last frost occurs after April 15 so be sure to be ready to cover your twinspur in the event of a surprise late frost.

USDA Zone Info for Machesney Park

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 Machesney Park

You may be interested in your other planting guides for Machesney Park.