Who We Are

Welcome to Winnowburrow Farm where we are proudly producing cut flowers, herbs, mushrooms, eggs, and beautiful, nutrient-dense heirloom produce in beautiful Western Wisconsin. By implementing sustainable, chemical-free and regenerative practices we hold ourselves to the highest standards of good land stewardship and are invested in not only preserving but restoring native habitats.

As we continue to embark on our journey in local cut flower and food production, we feel it is imperative to educate the greater community about the importance of regenerative farm practices, and about heirlooms and food biodiversity. Considering that 75-95% of global food biodiversity has been lost to GMO’s, monoculture and hybridization, our commitment to growing heirlooms is one of social responsibility.

By adapting rare and endangered food species to our local climate and growing conditions, we help to foster food safety for ourselves and our community, both local and global. And the bounty is such a joy to share!

We are thrilled to continue our journey as beginning farmers, and discover what we can offer the land, and what the land can offer us! We are immensely grateful for our family, friends, and clientele who support us both morally and financially in this grand adventure!

Please feel free to reach out to us with questions, suggestions, or to inquire about our cut flowers, chemical-free herbs and seasoning mixes, organic eggs and heritage breed poultry, and all-natural heirloom produce and heirloom garden seeds. We grow most standard culinary herbs, some medicinals, and many of your “garden variety” veggies such as Tomatoes, Potatoes, Beans, Corn, Carrots, Onions, Garlic, Salad Greens, Squash, Broccoli, Kale and much more. We are also in the beginning stages of shiitake mushroom cultivation and are working to offer nature-based gifts and decor for the holiday season.

Small family farms are not possible without the support of patrons invested in local food. Thank you!

Bonnie & Josh Warndahl

We are developing our concept
of an environmentally conscioussocially sensitive farm
focusing on preservation, education, research,
experimentation, inspiration, art and wellness.


Our CSA is unique in that we strive to exclusively grow heirloom produce.
Part of our mission is to help preserve what is left of our food biodiversity by growing these increasingly rare foods and saving seed adapted to our farm’s soil and local climate.
Plus, we make a promise to all of our investors to plant beneficial flowers for our endangered pollinators AND we are raising a diverse flock of heritage breed chickens who would love to donate some beautiful organic eggs to some lucky CSA members!


By committing to being an heirloom CSA we may have a slightly smaller variety of produce within each season, but the unique beauty, superior flavor, and exceptionally high nutritional content of the heirlooms we grow are well worth it.
While the cost is slightly higher than the average CSA to account for the extra labor involved in seed-saving, our investors can feel good about being actively involved in helping to increase food security.
To learn more about the global importance of Heirlooms and Seed Saving please visit this site and watch the amazing new documentary
SEED – The Untold Story

What’s in a Box?

Shareholders can expect a weekly delivery of what is fresh and in-season on the farm!
Deliveries can include everything from leafy greens, potatoes, tomatoes, carrots, beans, garlic, onions and sweet corn to flowers, kitchen herbs, and much, much more!

How Does it Work?

Here for Each Other

CSA stands for Community Supported Agriculture. CSA members choose to sign up for a fixed dollar amount at the beginning of each growing season. Our CSA members have a stake in the success of our farm—if we have a bountiful growing season, our members receive boxes brimming with locally-grown produce. If we experience a drought or low yields, our CSA members receive smaller shares. It means that, for one flat investment our members take a chance on us and support us through thick and thin.

We’re Stronger Together

The support of our members gives us the means to make it through even the worst growing seasons and, in turn, our members benefit by reaping the bounty when we are successful. Community Supported Agriculture is essential for the growth and perpetuity of many small, sustainable farmers.

Good for You, Good for the Community

Joining in a common cause for something as essential as healthy, locally grown and sustainable food brings communities together for today and for the future. Our CSA members learn about farming, local produce, cooking, and how to live sustainably for themselves and for the planet.