Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. 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 Napoleon should be read to figure out when it's the best time to plant garlic.

Planting Calendar for Garlic

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

Since garlic are very cold tolerant you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant garlic in Napoleon 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 garlic and expect a good harvest is probably September. Any later than that and your garlic may not have a chance to really do well. You can get started a couple of weeks earlier by starting your garlic indoors.

Last Frost Date

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

Since the USDA zone info for Napoleon is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Napoleon there is a last frost after April 15 be ready to cover your garlic if you have a surprise late frost.

USDA Zone Info for Napoleon

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 Napoleon

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