One of the first steps you take when you are making a decision about your gardening schedule is find your 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.

A common way of making a decision about when it's possible to plant nicotiana is to examine the USDA zone info for Calistoga.

Planting Calendar for Nicotiana

Frost tolerance for nicotiana:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You can not plant nicotiana until after the last frost has passed because they require warm weather.

The earliest that you can plant nicotiana in Calistoga 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 nicotiana and expect a good harvest is probably September. If you wait any later than that and your nicotiana may not have a chance to really do well. If you are starting your nicotiana indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Calistoga the average date of last frost happens on February 15. You should expect an average low temperature of 20°F in the coldest months of winter.

Remember that USDA zone info for Calistoga is an average and the actual date of last frost is different every year. Half of the time in Calistoga you get a frost after February 15 so always be ready to cover your nicotiana if you have a surprise late frost.

USDA Zone Info for Calistoga

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Calistoga

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