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.

The USDA zone info for Dayton can be reviewed to estimate when it's possible to plant alternaria.

Planting Calendar for Alternaria

Frost tolerance for alternaria:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's not a good idea to plant alternaria until after the last frost has passed because they require warm weather.

The earliest that you can plant alternaria in Dayton 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 alternaria and expect a good harvest is probably August. If you wait any later than that and your alternaria may not have a chance to fully mature. If you are starting your alternaria indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Dayton. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Dayton is just an average the actual date of last frost will vary from year to year. Half of the time in Dayton last frost occurs after April 15 so make sure that you are ready to cover your alternaria if you have a surprise late frost.

USDA Zone Info for Dayton

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 Dayton

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