One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of estimating when to plant oleander is to examine the USDA zone info for Coalinga.

Planting Calendar for Oleander

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

Oleander require warm weather which tells us that you need to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant oleander in Coalinga 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. You probably don't want to wait any later than that or else your oleander may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your oleander indoors.

Last Frost Date

The average date of last frost is February 15 in Coalinga. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Coalinga is an average the actual date of last frost is different every year. Half of the time in Coalinga last frost occurs after February 15 so just be sure to be ready to protect your oleander in the event of a surprise late frost.

USDA Zone Info for Coalinga

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Coalinga

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