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.

A common way of figuring out when to plant tomatos is to look at the USDA zone info for Mount Vernon.

Planting Calendar for Tomatos

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

Tomatos are not cold tolerant which means that it's important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant tomatos in Mount Vernon 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 tomatos and expect a good harvest is probably August. If you wait any later than that and your tomatos may not have a chance to really do well. Starting your tomatos indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Always keep in mind that USDA zone info for Mount Vernon may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Mount Vernon it frosts late in the year after April 15 be ready to cover your tomatos in the event of a late frost.

USDA Zone Info for Mount Vernon

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 Mount Vernon

You may be interested in your other planting guides for Mount Vernon.