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.

One way of estimating when it's a good idea to plant elephant ears is to refer to the USDA zone info for San Bernardino.

Planting Calendar for Elephant Ears

Frost tolerance for elephant ears:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

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

The earliest that you can plant elephant ears in San Bernardino 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. If you wait any later than that and your elephant ears may not have a chance to really do well. Starting your elephant ears indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on February 15 in San Bernardino. It might get as low as 25°F during the coldest months of winter.

Remember that USDA zone info for San Bernardino may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in San Bernardino you get surprised by a frost after February 15 be ready to cover your elephant ears if you have one of those late frosts.

USDA Zone Info for San Bernardino

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 San Bernardino

You may be interested in your other planting guides for San Bernardino.