Before planting it is a good idea to find your USDA Zone info to determine 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.

A way of figuring out when you can plant iceberg lettuce is to check out the USDA zone info for Santa Clara.

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.

Since iceberg lettuce do ok in moderate cold you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant iceberg lettuce in Santa Clara 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 grow to maturity. Starting your iceberg lettuce indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on March 15 in Santa Clara. You should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Santa Clara is just an average the actual date of last frost will vary from year to year. Since half of the time in Santa Clara there is a last frost after March 15 be ready to cover your iceberg lettuce in the event of a surprise late frost.

USDA Zone Info for Santa Clara

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Santa Clara

You may be interested in your other planting guides for Santa Clara.