When can I plant Oenothera in Zone 7b

The USDA Zone info is a great tool for gardeners to help us figure out our gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

The best time to plant oenothera in Zone 7b should be estimated by reviewing 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.

Since oenothera are moderately cold tolerant you can plant them a bit earlier in the year 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 7b 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 oenothera and expect a good harvest is probably September. If you wait any later than that and your oenothera may not have a chance to really do well. You can get started a little bit earlier by starting your oenothera indoors.

Last Frost Date

The average date of last frost is April 15 in Zone 7b. It might get as low as 5°F during the coldest months of winter.

Always keep in mind that USDA zone info for Zone 7b may not be accurate from year to year and our actual date of last frost will vary from year to year. Half of the time in Zone 7b we get surprised by a frost after April 15 so make sure that you are ready to cover your oenothera in the event of a surprise late frost.

USDA Zone Info for Zone 7b

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low5°F
Highest Expected Low10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Zone 7b

You may be interested in our other planting guides for Zone 7b.