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.

In Zimmerman you can determine when to plant garlic by using the USDA zone info.

Planting Calendar for Garlic

Frost tolerance for garlic:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant garlic earlier in the year because they are very cold tolerant.

The earliest that you can plant garlic in Zimmerman 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 garlic and expect a good harvest is probably August. You probably don't want to wait any later than that or else your garlic may not have a chance to grow to maturity. If you are starting your garlic indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Zimmerman the average date of last frost happens on May 15. You should expect an average low temperature of -30°F in the coldest months of winter.

Remember that USDA zone info for Zimmerman is an average and the actual date of last frost is different every year. Since half of the time in Zimmerman last frost occurs after May 15 be ready to protect your garlic if you have a late frost.

USDA Zone Info for Zimmerman

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Zimmerman

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