The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of getting a good idea when it's possible to plant oleander is to consult the USDA zone info for Calexico.

Planting Calendar for Oleander

Frost tolerance for oleander:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's probably not a good idea to plant oleander until after the last frost because they do not do well in cold weather.

The earliest that you can plant oleander in Calexico 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 oleander and expect a good harvest is probably September. If you wait any later than that and your oleander may not have a chance to really do well. You can get started a little bit earlier by starting your oleander indoors.

Last Frost Date

On average the last frost is on January 31 in Calexico. You should expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for Calexico is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Calexico last frost occurs after January 31 so always be ready to cover your oleander if you have a late frost.

USDA Zone Info for Calexico

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 Calexico

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