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 earliest that you can plant iceberg lettuce in Davison should be estimated by referring to the USDA zone info.

Planting Calendar for Iceberg lettuce

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

You can plant iceberg lettuce a bit earlier in the year because they do ok in moderate cold.

The earliest that you can plant iceberg lettuce in Davison 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 iceberg lettuce and expect a good harvest is probably August. You probably don't want to wait any later than that or else your iceberg lettuce may not have a chance to fully mature. Starting your iceberg lettuce indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Davison. You can expect an average low temperature of -15°F in the coldest months of winter.

Always keep in mind that USDA zone info for Davison is just an average and the actual date of last frost changes from year to year. Half of the time in Davison it frosts late in the year after April 15 so just be sure to be ready to cover your iceberg lettuce in the event of a surprise late frost.

USDA Zone Info for Davison

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Davison

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