One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Duarte should be used to determine when it's possible to plant oleander.

Planting Calendar for Oleander

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

You really shouldn't plant oleander until after all chance of frost has passed because they require warm weather.

The earliest that you can plant oleander in Duarte 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 grow to maturity. Starting your oleander indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Duarte. In the coldest months of winter you should expect an average low temperature of 30°F.

Keep in mind that USDA zone info for Duarte may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Duarte last frost occurs after January 31 so always be ready to cover your oleander in the event of a surprise late frost.

USDA Zone Info for Duarte

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 Duarte

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