One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant oleander in Santa Ana can be estimated by reviewing the USDA zone info.

Planting Calendar for Oleander

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

Oleander are not cold tolerant which tells us 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 oleander in Santa Ana 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. Any later than that and your oleander may not have a chance to fully mature. Starting your oleander indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Santa Ana the average date of last frost happens on January 31. In the coldest months of winter you can expect an average low temperature of 30°F.

Since the USDA zone info for Santa Ana is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Santa Ana last frost occurs after January 31 so just be sure to be ready to cover your oleander in the event of a surprise late frost.

USDA Zone Info for Santa Ana

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 Santa Ana

You may be interested in your other planting guides for Santa Ana.