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.

The earliest that you can plant elephant ears in Diamond Bar should be figured out by using 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 has passed.

Elephant Ears are not cold tolerant which means that it is important to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant elephant ears in Diamond Bar is February. However, you really should wait until March 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 is on January 31 in Diamond Bar. In the coldest months of winter you should expect an average low temperature of 30°F.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Diamond Bar and it can change quite a bit from year to year. Since half of the time in Diamond Bar there is a last frost after January 31 be ready to protect your elephant ears if you have a surprise late frost.

USDA Zone Info for Diamond Bar

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Diamond Bar

You may be interested in your other planting guides for Diamond Bar.