The USDA Zone info is a great tool for gardeners to help us figure out 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.

The first opportunity to plant elephant ears in Calistoga can be figured out by reviewing the USDA zone info.

Planting Calendar for Elephant Ears

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

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

The earliest that you can plant elephant ears 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 elephant ears and expect a good harvest is probably September. Any later than that and your elephant ears may not have a chance to grow to maturity. Starting your elephant ears indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for Calistoga is just an average the actual date of last frost will vary from year to year. Half of the time in Calistoga you get surprised by a frost after February 15 so make sure that you are prepared to protect your elephant ears 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.