The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Boulder City you can estimate when you can plant tomatos by looking at the USDA zone info.

Planting Calendar for Tomatos

Frost tolerance for tomatos:	Not tolerant of frost.
When to plant:	After the last frost.

Since tomatos do not do well in cold weather you need to wait until after the last frost before you can plant them.

The earliest that you can plant tomatos in Boulder City 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 tomatos and expect a good harvest is probably September. If you wait any later than that and your tomatos may not have a chance to really do well. Starting your tomatos indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Boulder City. In the coldest months of winter you can expect an average low temperature of 25°F.

Remember that USDA zone info for Boulder City is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Boulder City you get a frost after February 15 so be sure to be ready to cover your tomatos if you have a surprise late frost.

USDA Zone Info for Boulder City

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

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

Plants to Grow in Boulder City

You may be interested in your other planting guides for Boulder City.