How I Started Selling Seeds – Part 2

Last post, I wrote about how Tourne-Sol started offering seeds to other seed companies, and how tomatoes were the crop they bought.  But my  seed story didn’t start with tomato seeds; it began with the first couple pounds of arugula seed I harvested (you can read that story here). This arugula seed started a relationship with brassica seeds that kind of got out of hand.  The ensuing surplus of seed created another way we developed our relationship with our seed company clients.


Tourne-Sol grows a lot of salad greens for market and CSA, and these salad greens consume a large amount of seed. From a coulpe dozen brassica plants we were able to meet all our Tatsoi seed. A few dozen more placed elsewhere on the farm, and we had all the Mizuna seed we needed. The same with a half dozen other varieties of brassica greens.

Simultaneous to this I was reading up about plant popuplations, cross pollinators and maintaining genetic breadth and resilience (I posted a bit about that here). This led to growing more plants of each variety, which then led to harvesting more seed. To be honest, another reason I wanted to grow larger volumes of seed was to be able to run my fingers through bucketfuls.

As quantities increased, I moved to growing brassica on a 3-year rotation since the seed kept so well and I wanted to avoid cross pollination. But when I started to harvest 5-7 pounds of seed per variety, there was more seed than we could use up in three years. I needed to do something.

So I called up the seed companies who already bought our seeds and asked whether they were interested in brassica seeds? A couple said yes. Then they asked how much I was selling it for.


Until then, the  seed companies I had dealt with had set their own rates for seed. I wasn’t sure what to charge. I asked them what they thought was fair ? One person mentioned they’d bought some brassica seed for $20/ounce. That gave me a starting point.

After I hung up, I took out a pen and paper and crunched some numbers starting with what weight I’d harvested from what growing area. Then,  I looked at all the seed catalogues in my collection and listed the different ways they priced bulk brassica green prices. I realized that  $20/ounce was a great price but that with my seed yield, I could afford to ask for significanlty less. With a lower price, I figured I could sell more seed.  I went back to my seed clients and offered them a range of prices  with larger seed volumes at proportionally lower prices. ( Here is a detailed post on how we price seeds.)


Essentially, the two ways Tourne-Sol sells seed to other seed companies is on contract and on speculation. To highlight the difference between these two options, let’s compare how we plan and sell tomato seed (contract) and brassica seed (speculation).

TOMATO SEEDS: In the spring,  there is a flurry of e-mails back and forth with each company to whom I sell tomato seeds. We select tomato varieties together and determine what quantities they would like to reserve for the fall. I like to have a harvest target since tomato seed takes time to harvest, squish and ferment in large quantities. Since the bulk of our tomato seed is destined to seed companies, the number of tomato plants I grow for seed depends mainly on quantities these companies commit to purchasing.

BRASSICA SEEDS: Currently, I try to grow as much brassica seed as space permits in one year to use over the next 3 years.We use a lot of brassica seeds on farm and we do sell bulk salad green seeds through our own seed catalogue to farmers and gardeners. At present, I usually run out of brassica seed before the next production cycle comes around.As such, we don’t need a solid commitment from our seed company clients to determine what we will grow. Of course, every spring I do give them a heads up of what I am growing so they can plan accordingly. If they want to reserve some seed, I am happy to do that. However, if they want to wait until the fall to tell me what they need, that doesn’t drastically change our production goals.


Now the moral of this story is not to grow out a large quantity of seed on speculation and then try to sell it. That’s a great recipe for a lot of seed in your closet. Rather, grow the seed that you use and experiment with larger quantities. When you feel comfortable, approach seed companies with what you know you can do and find out what they want. Don’t start off with too much ambition – growing a lot of great seed is not easy. Develop a relationship with the folks who buy your seed and gradually increase quantities as you gain proficiency.


My co-farmer Fred received a grand prize for Tourne-Sol farm from Quebec’s finançière agricole contest Tournez vous vers l’excellence. Click here to see the contest’s video profile on Fred and the farm (note – it is in French).

Next on Going to Seed, less words and more pictures.

8 thoughts on “How I Started Selling Seeds – Part 2

  1. Thank you so much for these posts and sharing your experience! I will have lots to think about this winter. You definitely have me considering growing seed as part of my farm plan.

  2. As we save the vast majority of our own seeds I really find your blog posts on these subjects to be interesting…thank you so much for sharing all of this. We have been working on a rotational plan for saving seeds from brassicas and cucurbits over the years as I just do not have the room to seperate them or the means to bag or cage large amounts of them at this time. So far we have had a lot of success with the many varieties of seeds we save but as the numbers increase it has become more difficult to take measures that will prevent cross pollination.

    I am looking forward to your pictures.:)

  3. Joyce – Good luck with the winter musings! I think seed crops can have a place on every farm. I still have a few more thoughts on selling seed but I’ll wait a couple weeks to get back on the subject.

    Mike – I do appreciate the challenges of isolating cucurbit varieties as we grow a fair amount of squash, cucumbers and zucchini for sale as vegetables. For a while we tried hand pollination but weren’t thrilled with the process and didn’t always trust the results. We’ve begun to grow cucurbit patches for seed in the middle of our landlords organic grain corn fields.

    Bill – Thanks for the link. I love discovering seedy ventures I didn’t know about. It gives me hope that so many people are putting effort into bringing seed saving back into farms and gardens where it belongs.

  4. hey sir/madam
    I want to sell seeds from Ethiopia to the world wide so I need to guied me how can I start it?

    1. Hi,

      This is a big question to answer.

      First off, make sure you are growing good seed with good proper isolation distances and population size.

      Do germ tests to make sure your seed is viable,

      You should probably be aware of any government regulations related to sale of seeds.

      Next, set up a website or facebook page with your details and share.

      Good luck,

  5. I loved your story thank you for sharing thinking about starting a seed company but I would like to buy in bulk and sell on line is this a profitable thing to do , I don’t have the acreage to grow. Hope to hear from you thank you.

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