The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to determine when you can plant monarda by checking out the USDA zone info for Dayton.

Planting Calendar for Monarda

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

You can plant monarda a bit earlier in the year because they are one of those plants that can tolerate a tiny bit of cold weather.

The earliest that you can plant monarda in Dayton is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant monarda and expect a good harvest is probably September. If you wait any later than that and your monarda may not have a chance to grow to maturity. You can get started a little bit earlier by starting your monarda indoors.

Last Frost Date

The average date of last frost is February 15 in Dayton. In the coldest months of winter you can expect an average low temperature of 20°F.

Keep in mind that USDA zone info for Dayton is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Dayton you get a frost after February 15 so always be ready to cover your monarda in the event of one of those late frosts.

USDA Zone Info for Dayton

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Dayton

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