Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Hamilton you can determine when to plant iceberg lettuce by using 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.

Iceberg lettuce do ok in moderate cold which tells us that you can start planting them slightly earlier than plants that are more sensitive to the cold.

The earliest that you can plant iceberg lettuce in Hamilton 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. Any later than that and your iceberg lettuce may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your iceberg lettuce indoors.

Last Frost Date

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

Since the USDA zone info for Hamilton is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Hamilton it frosts late in the year after April 15 so make sure that you are prepared to protect your iceberg lettuce in the event of one of those late frosts.

USDA Zone Info for Hamilton

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 Hamilton

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