Chestnut Herbal School

Cold Season Wild Greens and Pecan Feta Wild Greens Pesto

Written and Photographed by Juliet Blankespoor

Creasy greens

Creasy greens (Barbarea verna, Brassicaceae), also known as wintercress, is a common weed in the Southeast and the pacific Northwest. Its close relative, Barbarea vulgaris, has a more widespread distribution, occurring throughout most of temperate North America. Here in the southern Appalachians, they grow side by side and I seriously doubt that many people pay attention to which species they are picking for food. They are both edible, and to my palette, taste identical.

Little hands help pick creasy greens in January

The number of lobes present in their basal leaves easily differentiates both species, with B. verna possessing 4-10 pairs of lateral lobes and B. vulgaris possessing 1-4 lobes. Both species of wintercress are Eurasian natives, and can be found in fields, roadsides, and gardens. The leaves, flowers, and flower shoots are edible. It has a lively pungency when eaten raw as a zesty addition to a mixed baby green salad; when sautéed or steamed the greens mellow in flavor. Winter cress grows more spicy and bitter as the season progresses; it can be added to milder cooked greens when its flavor begins to intensify.

Creasy greens basal rosette

Creasy greens basal rosette in January in Weaverville, NC.

During the winter we find this plant in its basal rosette stage (all the leaves emerging from a central point on the ground with no erect stem). The leaves are smooth with rounded lobes, and have an obvious mustard-like aroma when the leaves are crushed. In the winter, depending on where you live, the older leaves can be quite fibrous and intense in flavor. Pick the tender new leaves all winter if you live in a southern climate, and if you live in colder country wait until very early spring to pick the succulent fresh greens.  When the ground begins to warm, the plant sends up a flowering shoot that can be used like a mini broccoli or broccoli-raab while still young and tender. After the flowering stem begins to toughen, I simply use the bright yellow flowers to garnish salads and other dishes.

Creasy greens are a traditional early spring delicacy in the south and still can be found in some rural grocery stores. Apparently the name has its origins in the old European term cress, which is a synonym for mustard; cress slowly transformed into creasy (rhymes with greasy) over time. One can buy seeds of this extremely cold-tolerant plant as winter cress (the Yankee name used in most wild foods books) and grow it all winter in an unheated greenhouse or under little hoop houses covered with clear plastic or floating row covers (also sold as frost blankets). If you’re lucky enough to have it already growing near you, simply let it flower and go to seed and your patch will increase. Watercress (Nasturtium officinale), also in the mustard family, looks somewhat similar but grows in waterways and not on land.

Wild turnip or field mustard

Wild turnip is one of the most common field weeds here in western North Carolina; it has become a major weed of the temperate world, following closely on the heels of agriculture. When field mustard flowers the hayfields and bottomlands light up in golden glory, inspiring many a painter and photographer.

Wild turnip is in the mustard family, or Brassicaceae, and has the characteristic smell and flavor of the piquant mustard oils found in all members of this ubiquitous plant family. The winter ground leaves are arranged out from a center point; botanists call this a basal rosette. The overwintering leaves can be fibrous and bitter, so look for the tender new growth in the center of the rosette. Depending on where you live, the new growth may appear all winter, or the plants may wait until temperatures warm a bit. In early spring the flower shoots begin to appear; these tender shoots are edible, and can be prepared like a thinner version of broccoli stems. Quickly they age and loose their supple texture. You will not be able to eat them when they toughen, unless you want to chew each bite one thousand times. But the yellow flowers, tender flower bud tips and stem leaves are tender and edible.

Brassica rapa

Brassica rapa – Left -young flowering shoot. Right – basal rosette in winter

The flavor of wild turnip greens is reminiscent of mustard or turnip greens. If you are not a fan of mustard’s pungent bitter flavor, try mixing wild turnip with milder greens, or masking its flavors with copious garlic and lemon. And then there’s always the option of feeding it to the chickens.

Brassica rapa has been cultivated by people in Europe and Asia for at least two thousand years, and has taken on many forms through breeding. In Asia, this species has given rise to the vegetables bok choy, pak choi, mizuna and napa cabbage. In Europe, it has been bred into the turnip and broccoli raab. In addition field mustard has been cultivated as animal fodder, and a forage crop for sheep, cattle and deer. It has also been grown as a cover crop and as a fail safe against famine.

Field mustard in flower

Field mustard in flower

Purple dead nettle

Purple dead nettle is a cold hardy annual native to Eurasia, found growing in gardens, fields, cities and roadsides throughout most of North America. Dead nettle’s interesting name originates from its resemblance to stinging nettle, but without the sting of nettle, hence it is “dead”. In the mint family, dead nettle (Lamium purpureum, Lamiaceae), possesses a minimal level of essential oils and minty flavor and scent. Truly subdued compared to most members of the mint family, it is one of the few members used as food, rather than as a spice or medicine. The tender new leaves and growing tips are edible in moderation raw or cooked, and in my experience, best enjoyed cooked with other greens, or as small portion of a salad. I think of purple dead nettle as a nibble sort of edible, and don’t eat it in large quantities. Whether this is due to the hairiness of the plant, or its inclusion in the mint family (which generally does not produce vegetables), or intuition, I am not sure.

For more on purple dead nettle, elaiosomes, immigration and ants, visit my article here.

Lamium purpureum flowering stalk

Lamium purpureum flowering stalk

Lamium purpureum

Top photo: Creasy greens (Barbarea verna) beginning to flower, growing with purple dead nettle. Bottom photo: purple dead nettle growing a field.

Chickweed (Stellaria media) flowers magnified

Chickweed (Stellaria media) flowers magnified

Remember to always pick from areas that have not been contaminated with herbicides and other harmful chemicals, and do your gathering at least 30 feet from the road. Even seemingly fallow hay fields may be treated with herbicide to kill the broad-leafed weeds. One of the fields across the street from my home, which had been untended for years, suddenly came under new stewardship. The new “stewards” decided to spray the field with herbicide, and then fancying themselves good Samaritans, proceeded to spray the entire stream to kill all the “weeds”. It can take a week for some herbicides to kill a plant, so a field could conceivably be sprayed recently, unbeknownst to you, and you could be picking seemingly healthy looking greens. Another common sense caveat: be absolutely positive of your plant identification and know what you are harvesting and eating!

Happy Foraging! May all beings be fed!


Wild greens pesto

Wild greens pesto

Pecan Feta Wild Greens Pesto

This pesto has a pungent flavor reminiscent of arugula or wild mustard. Serve as a dip with crackers and veggies or as a spread on a pizza crust or flatbread. Another option is to toss over pasta or veggies. Feel free to substitute nuts and greens.
Course Side Dish
Yield 5 servings


  • Food processor or blender
  • Sauté pan


  • ½ onion
  • 4 cloves garlic
  • 4 cups washed coarsely chopped wild greens - Wild turnip, wintercress, and purple dead nettle are excellent choices.
  • 2 cups raw coarsely chopped chickweed tops
  • 4 ounces extra virgin olive oil
  • ¼ cup tahini (sesame butter)
  • ½ cup freshly toasted whole pecans
  • 3 ounces feta cheese
  • ½ cup chickweed
  • Salt to taste


  • Sauté the onions and half of the garlic in olive oil until the onions begin to turn translucent.
  • Add the greens and sauté until they are tender.
  • Take off heat and set aside to cool.
  • Add chickweed, pecans, olive oil, tahini, and feta to a blender or food processor.
  • Add the remaining garlic to the blender (depending on your love of garlic add more or less) and then add the greens when they are cooled a bit.
  • Blend by slowly adding the greens, blending, and adding more greens until your pesto is coarsely ground.
  • Feel free to add more olive oil for a creamier consistency. If you’ve ever blown the motor in a blender, you know how important it is to not stress the blender to overheating.
Keyword Chickweed, Feta Cheese, Pesto
Tried this recipe or have questions?Leave a comment!

Chopping field mustard

Chopping field mustard

This pesto has a pungent flavor reminiscent of arugula or wild mustard. If that’s not your cup of tea, try cucumber sandwiches. Seriously, you can mellow the flavor by adding more chickweed and less of the mustard greens. Serve as a dip with crackers and veggies or as a spread on a pizza crust or flat bread. Another option is to toss over pasta or veggies. Feel free to substitute other nuts for the pecans, and seasonal wild or cultivated greens for the greens featured in this recipe.

wild greens pizza

Pizza with wild greens pesto, shitake mushrooms, goat cheese, kalamata olives, and gorgonzola dolce


A bowl of Pecan Feta Wild Greens Pesto surrounded by crackers.

I couldn’t help sneaking in another photo of the pesto.

Meet The Green Mastermind Behind Blog Castanea

Juliet Blankespoor

JULIET BLANKESPOOR is the founder, primary instructor, and Creative Director of the Chestnut School of Herbal Medicine, an online school serving thousands of students from around the globe. She's a professional plant-human matchmaker and bonafide plant geek, with a degree in botany and over 30 years of experience teaching and writing about herbalism, medicine making, and organic herb cultivation. Juliet’s lifelong captivation with medicinal weeds and herb gardening has birthed many botanical enterprises over the decades, including an herbal nursery and a farm-to-apothecary herbal products business. 

These days, she channels her botanical obsession through her writing and photography in her online programs, on her personal blog Castanea, and in her new book, The Healing Garden: Cultivating and Handcrafting Herbal Remedies. Juliet and her family reside in a home overrun with houseplants and books in Asheville, North Carolina.

Interested in becoming a contributor?


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7 thoughts on “Cold Season Wild Greens and Pecan Feta Wild Greens Pesto

    • I would call around to your local farm stands and ask any old timely farmers to show you the plant. In our area the farm stands, farmers market and ingles are all places you can buy Creasy greens in early spring.

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