One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Greenfield can be reffered to in order to figure out when it's a good idea to plant browallia.

Planting Calendar for Browallia

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

It's probably a bad idea to plant browallia until after the last frost has passed because they require warm weather.

The earliest that you can plant browallia in Greenfield 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 browallia and expect a good harvest is probably August. Any later than that and your browallia may not have a chance to grow to maturity. Starting your browallia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Greenfield may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Greenfield it frosts late in the year after April 15 so be sure to be ready to protect your browallia if you have a late frost.

USDA Zone Info for Greenfield

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 Greenfield

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