When can I plant Oenothera in Zone 10b

One of the first steps we take when we are determining our gardening schedule is find our USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

It's possible to determine when to plant oenothera by looking at the USDA zone info for Zone 10b.


Planting Calendar for Oenothera

Frost tolerance for oenothera: Tolerant of some frost.
When you should plant them: Up to 5 weeks before last frost.

Oenothera are one of those plants that can tolerate a little bit of cold weather which tells us that you can plant them a little bit earlier than plants that are more sensitive to the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant oenothera
Possibly ok, but a risky time to plant oenothera
Probably not a good time to plant oenothera

The earliest that you can plant oenothera in Zone 10b is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant oenothera and expect a good harvest is probably October. If you wait any later than that and your oenothera may not have a chance to really do well. You can get started a few weeks earlier by starting your oenothera indoors.

Last Frost Date

The average date of last frost is January 31 in Zone 10b. In the coldest months of winter we should expect an average low temperature of 35°F.

Since the USDA zone info for Zone 10b may not be accurate from year to year our actual date of last frost changes from year to year. Half of the time in Zone 10b we get surprised by a frost after January 31 so make sure that you are ready to cover your oenothera in the event of a surprise late frost.

USDA Zone Info for Zone 10b

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)January 31
Average Date of First Frost (fall)December 15
Lowest Expected Low35°F
Highest Expected Low40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Zone 10b

You may be interested in our other planting guides for Zone 10b.