One of the first steps you take when you are figuring out 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.

The USDA zone info for Calistoga can be used to figure out when to plant caladium.

Planting Calendar for Caladium

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

You should not plant caladium until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant caladium 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 caladium and expect a good harvest is probably September. You probably don't want to wait any later than that or else your caladium may not have a chance to grow to maturity. If you are starting your caladium indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

It's important to remember that the actual date of last frost is an average because it is based on the USDA zone info for Calistoga and it is different every year. Half of the time in Calistoga you get surprised by a frost after February 15 so be sure to be ready to cover your caladium if you have one of those late frosts.

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.