Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Donaldsonville you can determine when to plant oenothera by referring to the USDA zone info.

Planting Calendar for Oenothera

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

Oenothera can survive in mild cold which means that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant oenothera in Donaldsonville 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. Any later than that and your oenothera may not have a chance to really do well. Starting your oenothera indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Donaldsonville. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Donaldsonville is not always accurate the actual date of last frost is different every year. Half of the time in Donaldsonville you get surprised by a frost after February 15 so make sure that you are prepared to cover your oenothera in the event of a late frost.

USDA Zone Info for Donaldsonville

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Donaldsonville

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