When can I plant Oenothera in Zone 11b

Before planting it is a good idea to find our USDA Zone info to figure out our garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The first chance to plant oenothera in Zone 11b should be figured out by looking at the USDA zone info.


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 do well in moderate cold which means that you can plant them a little bit earlier than other frost tender plants.

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 11b 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 November. Any later than that and your oenothera may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your oenothera indoors.

Last Frost Date

In Zone 11b it never frosts. We can expect an average low temperature of 45°F in the coldest months of winter.

Just be sure to remember that our actual date of last frost is an average because it is based on the USDA zone info for Zone 11b and it changes from year to year. Since it never frosts in Zone 11b you do not have to be ready to protect your oenothera in the event of one of those late frosts.

USDA Zone Info for Zone 11b

Here is the info for USDA Zone 11b.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low45°F
Highest Expected Low50°F

This means that on a really cold year, the coldest it will get is 45°F. On most years you should be prepared to experience lows near 50°F.

Plants to Grow in Zone 11b

You may be interested in our other planting guides for Zone 11b.