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

In Marion you can estimate when to plant tomatos by referring to the USDA zone info.

Planting Calendar for Tomatos

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

You can not plant tomatos until after the last frost because they are not cold tolerant.

The earliest that you can plant tomatos in Marion 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. Any later than that and your tomatos may not have a chance to fully mature. You can get started a few weeks earlier by starting your tomatos indoors.

Last Frost Date

The average date of last frost is April 15 in Marion. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Marion is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Marion you get surprised by a frost after April 15 be ready to cover your tomatos in the event of a late frost.

USDA Zone Info for Marion

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Marion

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