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.

In Perris you can figure out when to plant oleander by referring to the USDA zone info.

Planting Calendar for Oleander

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

It's probably a bad idea to plant oleander until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant oleander in Perris 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 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 grow to maturity. Starting your oleander indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Always keep in mind that USDA zone info for Perris is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Perris there is a last frost after February 15 be ready to protect your oleander if you have a late frost.

USDA Zone Info for Perris

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 Perris

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