This week, I’m blogging about a previously mentioned plant, common evening primrose (Oenothera biennis). The original post showed summer time photos, as well as one picture of its “winter aspect.”
In the winter, evening primrose stalks stand out with their brown fluted seedpods. Like much winter foraging, identifying the evening primrose stalks in the cold months gives you a place to which to return when the weather warms up. This biennial plant offers edible roots in its first year, and edible flower stalks, flowers and seed heads in its second year of life.
I recently found evening primrose standing out clearly against the snow.
(There are some additional photos on the Maryland Biodiversity Project site as well.)
I haven’t been able to confirm this yet, but I assume not all evening primrose plants in a patch will be on the same life cycle. These dried stalks are from second year plants, and new first year plants will start from their seeds; but there must be other plants in the area that will be in their second year during 2019. I think. Maybe. We’ll see!
In addition to locating future crops, evening primrose has a bonus winter benefit. Some of these seed heads still have seeds in them!
I can hear some of you now… well, one of you in particular. “Are the seeds of sufficient caloric value to be worth the effort to harvest?” Obviously the crop would have been larger if you had gathered the seed heads before they dried and lost half their seeds; but perhaps you only just discovered the plants now, in the dead of winter. Or you’d used all the seeds you harvested in the fall. Or you just spontaneously realized you needed gamma linolenic acid (GLA) in your life. Who knows? The point is: some seeds are still there.
The seed heads are made up of four chambers which can be pried apart down to the base. If there are seeds left in mid-winter, they will be tucked away in this part. Rather than separating the four chambers by hand, I find it faster to use garden sheers to cut through each seed head near the base. Doing this above a mesh strainer over a bowl allows the seeds to fall through into the bowl while the rest of the plant matter stays in the strainer.
Well. In theory anyway. Evening primrose seeds suffer the same harvesting challenges as any small seeds (mustard and amaranth, for example): winnowing is an essential step to remove the last traces of unwanted dust and plant bits from the seeds. The usual winnowing process involves pouring the seeds between two bowls while a light breeze blows. The seeds fall to the waiting bowl and the winds carries away the chaff.
The seeds in the following picture still need to be winnowed. Obviously!
Unfortunately, the breeze around my house is ALWAYS strong, which is why there is STILL no post about my amaranth harvest last year. (I tried, I really did.)
Once you have the evening primrose seeds cleaned – better than in my photo, please! – they can be used anywhere you would want a healthy crunchy topping. They can be sprinkled onto yogurt, desserts, or used in baked goods in place of poppy seeds. Some sources suggest toasting the seeds in a dry skillet over a low heat until they begin to smell fragrant. (I haven’t tried this personally so I can’t tell you what it smells like!)
Or you can do what I will probably do with my small, uncleaned harvest… scatter them around the yard and wait for next year’s crop to grow!