One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By checking out the USDA zone info for Mayville you should be able to figure out when it's the best time to plant gomphrena.

Planting Calendar for Gomphrena

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

Gomphrena can survive in mild cold which means that you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant gomphrena in Mayville 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 gomphrena and expect a good harvest is probably August. You probably don't want to wait any later than that or else your gomphrena may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your gomphrena indoors.

Last Frost Date

The average date of last frost is April 15 in Mayville. You can expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Mayville is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Mayville last frost occurs after April 15 so be sure to be ready to cover your gomphrena if you have a surprise late frost.

USDA Zone Info for Mayville

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°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 -15°F.

Plants to Grow in Mayville

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