One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. 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 Tonganoxie should be used to estimate when to plant monarda.

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.

Monarda are barely cold tolerant which tells us that you can start planting them slightly earlier than more sensitive plants.

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

The last month that you can plant monarda and expect a good harvest is probably August. Any later than that and your monarda may not have a chance to really do well. You can get started a couple of weeks earlier by starting your monarda indoors.

Last Frost Date

The average date of last frost is April 15 in Tonganoxie. In the coldest months of winter you can expect an average low temperature of -10°F.

Just be sure to remember that USDA zone info for Tonganoxie is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Tonganoxie you get a frost after April 15 be ready to protect your monarda in the event of a late frost.

USDA Zone Info for Tonganoxie

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 Tonganoxie

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