One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of estimating when it's a good idea to plant sweet corn is to look at the USDA zone info for Florham Park.

Planting Calendar for Sweet corn

Frost tolerance for sweet corn:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Sweet corn do ok in moderate cold which means that you can start planting them slightly earlier than more sensitive plants.

The earliest that you can plant sweet corn in Florham Park 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 sweet corn and expect a good harvest is probably August. If you wait any later than that and your sweet corn may not have a chance to fully mature. If you are starting your sweet corn 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 Florham Park. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Florham Park may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Florham Park last frost occurs after April 15 be ready to cover your sweet corn if you have a surprise late frost.

USDA Zone Info for Florham Park

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Florham Park

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