The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By using the USDA zone info for West Covina it's a good idea to determine when it's the best time to plant oleander.

Planting Calendar for Oleander

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

Since oleander require warm weather it is necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant oleander in West Covina 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. 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 West Covina. In the coldest months of winter you should expect an average low temperature of 30°F.

Since the USDA zone info for West Covina is just an average the actual date of last frost is different every year. Since half of the time in West Covina you get a frost after January 31 be ready to cover your oleander in the event of a late frost.

USDA Zone Info for West Covina

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 West Covina

You may be interested in your other planting guides for West Covina.