One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Glasgow can be read to determine when it's the best time to plant corn.

Planting Calendar for Corn

Frost tolerance for corn:	Not tolerant of frost.
When to plant:	After the last frost.

Since corn do not do well in cold weather it is necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant corn in Glasgow is April. However, you really should wait until May if you don't want to take any chances.

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

Last Frost Date

The average date of last frost is April 15 in Glasgow. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Glasgow is not always accurate the actual date of last frost changes from year to year. Half of the time in Glasgow it frosts late in the year after April 15 so make sure that you are prepared to protect your corn if you have a late frost.

USDA Zone Info for Glasgow

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 Glasgow

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