Ever Consider Starting a Microgreen Farm?

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Please welcome Chris Wimmer, a hydroponic grower. We talk about side hustles a lot in the personal finance community.  I’ve asked Chris to investigate a business idea that might be of interest to everyone as it has low start-up costs, doesn’t require too much space, and could be a nice source of side income: starting a microgreen farm. Let’s see what he found out.

hydroponic trays

Today I want to introduce a couple topics which might be new to some of you, and pose the question:  is an area worth investigating as a possible side or even full-time business? I believe running your own mini hydroponic microgreen farm could be a perfect first home business. Let’s dive into just what a hydroponic microgreen farm is and run a few rough numbers to see if it could work for you.

What are Microgreens?

Microgreens are those little vegetable greens top chefs tend use to top their dishes. Chefs use various types of microgreens to add extra visual, textural, and flavor notes to their dishes. While they may look complicated, microgreens are simply vegetables harvested between the baby stage and sprout stage. There isn’t an FDA or legal definition of a microgreen, but they are usually about 1.5” in size and have grown just large enough to have the first 2 or 3 leaves growing out from the stem. This stage is reached in about 14 days for most plants.

What is Hydroponics?

Hydroponics is gardening without dirt or soil. In Greek it actually translates to “working water” because the ancient Greek hydroponic systems enabled them to divert water over their dirt less crops in an automated fashion.

Over the centuries and especially in the past 20 years, growers have created many different types of hydroponic systems but they all have a few common principles: grow tray, medium (dirt replacement), nutrient rich solution, and a reservoir to hold the solution. Today, the most commonly used media are clay pellets, perlite, peat moss, and rockwool. The perfect media should keep the plant roots moist but still allow the plant to breath.

Benefits of Hydroponics

• Uses 90% less water compared to soil gardening
• No weeds to pull
• Less fertilizer. Up to 75% less. Most fertilizer applied to soil is lost in water run off.
• Plants can grow closer together which is perfect for my small urban setting.
• Easy to grow inside by simply adding a grow light. (Chris made his own for $10.)

Why Hydroponics & Microgreens are a Perfect Match

Microgreens are a perfect hydroponic crop as its simple short growing cycle actually makes hydroponics easier than growing plants to full size. Given their super small size you can pack hundreds of microgreen plants into just a few square feet of planting space. Microgreens also don’t need external nutrition as the seeds themselves have enough nutrients to fuel their growth to the microgreen stage which lets you eliminate the traditional hydroponic reservoir and nutrient solution.

The 30 Second Guide to Growing Microgreens

Growing hydroponically is super simple. You sprinkle the seeds over the grow trays filled with your media and moisten with a spray bottle. Keep the tray covered until they germinate and then expose them to light for about another week. You should expect to mist your trays every day once they sprout. So did you get all that? No worries. I know that was a shotgun blast in just a couple of sentences. Hopefully that gives you the conceptual idea. If you want to see how to do it step-by-step along with some pictures check out my post last winter about hydroponic microgreens. Even if you don’t start your own business you can at least grow a few greens to impress your friends without breaking the bank!

Running the Numbers on a Microgreen Farm

Let’s first start with a caveat. These are estimates and assumptions. They aren’t perfect but they should be directionally correct. If you would like to explore this more you will need to complete a lot more due diligence.

Start-up Costs

Here’s a rough guide of what you should expect to invest before you can start seeing a return. This assumes you will have indoor space already available (greenhouse or basement).

  • 50 Growing Trays @ $2.00 = $100
  • Initial Seed purchase =$50 $200* (This will provide you enough to grow about 50 sq feet of crops)
  • 10 CFL 150Watt Lights @ $5 each = $50
  • Media = $30
  • In-depth Guide = $50 (Optional but a wise investment)

Up Front Total = $430

Monthly Revenue

Every square foot planted should yield 20 pounds of greens per month (10 pounds, twice). Lighter microgreens may yield as little as 4-5 oz. Those of the pea variety tend to be heaviest. The average price of greens is about $20/pound.

10 square feet = $250*-$4,000/month of revenue

Monthly Costs

  • 1 pound of seeds costs about $30 and will plant 20 square feet*
  • 10 square feet of seeding costs = $30.00 (remember you plant every 14 days)*
  • Soil replacement, lighting, and other plant care is about $4 per square foot each month.
  • Cost of growing 10 square feet = $40.00*

Total Monthly Growing Costs for 10 square feet = $70.00*

Net Profit/month after First Month= $180*-$3,930

Expected Labor

10 square feet of microgreens will require about 10 hours of work each week = 40 hours per month

Selling & Delivering:

  • Restaurants = 10 hours per month
  • Farmers Market = 12 hours

Total labor hours = 62 hours/month

$180/ 62 hours= $2.90 hourly wage


$3,930/ 62 hours = $63 hourly wage

(Research the average weight of the microgreens you’ll be growing before you start as this will drastically affect your hourly wage. After the first month, you won’t have start up costs and your hourly wage will improve no matter what weight class you’re in.)



Microgreens are a high margin product and is a very good option to start a side or full time business. The key to success is to avoid product loss, minimize time required to sell the product, and ensure you have a consistent distribution channels.


Hey, it’s FF again.  I’m just wondering if anyone else’s jaw is on the floor right now? And seriously considering starting a microgreen farm in my living room.  Many thanks to Chris!

*UPDATE: I feel like it’s important to direct readers to the comments below.  Dissenting opinion is important, and Chris has been absent for a while, so I did some of my own research and modified information as appropriate. While many microgreens only yield 4-5 oz, there are success stories of business owners getting one pound yields. I’m assuming they’re of the pea variety as those tend to be the heaviest; a quick gram to pound conversion would support this theory. Seed costs may be higher than the author suggested, whether due to the passage of time, geographic price differences, or misinformation. From my research, you can expect to spend about $200 to seed a microgreen farm of this size.



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22 thoughts on “Ever Consider Starting a Microgreen Farm?

  1. Kalen

    Wow! I learned a lot and a few new words. This sounds like something my wife would love. So, as far as profiting from the garden, where/how do you sell the micro greens? Or a better question may be: who do you sell them to? This was an awesome article!

    1. femmefrugality Post author

      From what I gather, at farmer’s markets and direct to restaurants. My guess would be the fancy ones. I’ll get Chris to further field this, though.

  2. Chris Wimmer

    Sorry I wasn’t able to go into detail about the selling and marketing. It was an info packed article. I think the answer above was pretty solid. You can also inquire at organic and higher end grocery stores. (Skip the chains as they have large purchasing departments).

    1. femmefrugality Post author

      No worries, Chris! There really is a lot of info in there! We might have to have you back for more!

      1. Kalen

        Thanks for both of the answers! That makes sense. Basically just marketing yourself to different places. I am really interested in trying this idea! Thanks for all the info and the help guys!

        1. femmefrugality Post author

          I’d be really interested to hear your experiences if it’s something you guys end up doing!

    2. Kristin

      Local restaurants love to buy direct from growers. Cilantro is popular here in California. Besides peas, sunflower sprouts are weighty and sell well.

  3. donebyforty

    Cool post! I’ve considered it in the past, but found that I am more someone who buys their greens than grows them. Still, a very cool idea for improving health.

    1. femmefrugality Post author

      Haha I hear you. My black thumb is quivering in fear, but the returns are high enough it might be worth learning how to overcome that.

    1. femmefrugality Post author

      The awesome thing about the way Chris had things set up is that it really is meant for small spaces. I’d check out his blog to explore how this is done in more detail.

  4. aaron

    When you harvest 1 sqft, it will not even be close to 10lbs. It will be more like 4oz. which is 1/40 of ten pounds. I don’t like to point out negative things, but I am certain about this, 10lbs of greens is a huge bag, think very large garbage bag. One tray of micro greens is not even close to that. This fact throws the profitability of this way off. Successful micro greens farms are usually a bit larger with 1000 sqft+ of grow space, with multiple levels of selves. look up ecopia farms or urban hydro greens. two I know off. (I am not promoting, just giving examples)

    1. femmefrugality Post author

      Thanks so much for the info, Aaron! I’m going to try to get Chris on this as it’s not an industry I’m familiar with personally.

    2. Matt

      I’ve grown micros for quite some time now and if I was able to produce like those number show Id be a millionaire by now. I completely agree with Aaron, it would be more like a 4-6 oz average unless your growing heavier items but even so you wouldn’t have that kind of weight. I do agree that money can be made at a quick turnover but definitely not at that rate.

      1. Sher Roach

        I’ve been growing micros for 1 year now – the average 6 oz per 10×20 tray. Some seed, such as purple kohlrabi is 3x as much as daikon radish! And my customers won’t pay more per type of micro, although radish is prob 8 oz yeild & heavier/larger micro. I get $2.50 per 2 oz bag or 2 bags for $5 at my farmers market w/city population of 15,000. My area is very rural & not food educated. There is no way I could charge more & actually sell them. Sure wish I lived back in a proper city again so I could raise my price!

  5. David

    As Aaron mentioned, there’s a problem with the calculation. 10 square feet of growing space would only produce $400 in revenue, not $4000, so one would need 100 square feet of trays (a 10 foot x 10 foot) area to begin to make the revenue suggested. Nice article and helpful otherwise. Thanks!

  6. Michelle

    The above comments are correct. We grow in 2000 sqft, 5 levels high. The yield of the micros is measured in ounces not pounds. The seed costs are off too. If you are growing pea shoots you would get a much heavier yield but when it comes to micros they are so light.

  7. Christiaan

    Hi, hope someone might see this and answer me.
    What is the size of growing tray? Is the yield of 4/5 onces per tray or per sq ft. If 10 hours labour is needed for 10 sq ft as in excample, will you need 100 hours labour for the 100 sq ft as suggested to make the income as sugested? I think its easy when growing for fun and own consumption, but commercialy, immediately the game change. Restaurants depend on a steady supply and prefer sourcing from bigger growers or supply stores. Its my first year Im trying it and feel a bit nervous what I’m going to do with my products. After reading this article, I feel like trying the micro greens as well. Thank you for all information supplied above. I think all that left comments, its amazing for me that it was not an attacking action, just sort of rectifying/additional guidance.

  8. Luther miller

    We just built a 48×24 foot greenhouse and want to try micro greens. What aRe grow policies and safety practices that some buyers ask for?

  9. Patrece

    If growing to sell, be sure to check with your local and state agencies for any requirements they have. From there, it varies by customer/client as to what their preferences are. Some will require organic and non-GMO. In my humble opinion, that’s how it should be done, anyhow.

    Microgreens are a nutrient dense food, often preferred by consumers for the health benefits as much, if not more than for the flavor, texture and the way they can beautify the presentation of a meal. Therefore, I, as a prospective future microgreens grower, feel it makes sense to keep this “nutrient-packed food” as healthy as possible. It can only help to ensure that you will attract customers who may otherwise pass on your offerings. The focus on both health and environmental conscientiousness will impress and please your clients.

    I have been looking into and studying this idea for a while now, and wanted to share that some of the most successful in this business, establish a “subscription” program and deliver to their customers’ doors on either a weekly, bi-weekly, or monthly basis. The farmers’ markets are a great place to build up your subscription service participants which, helps you continue to sell long after the farmers’ markets close down for the season. Think; year around!


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