Urban Farming

One Year In: What I Wish I Knew Before Starting a Farm

By Sara JohnsonThursday, December 5, 2024

A year ago this month, I planted my first commercial tray of sunflower microgreens. I remember the exact date because I wrote it down in a notebook that I still keep on the shelf above our grow racks. That notebook has become one of the most valuable things I own — not because of what I planned in it, but because of everything I got wrong and had to correct.

Starting Wholly Water Farms has been the most rewarding and most humbling thing I have done. I want to share what I actually learned in year one, because the version of farming you see on social media leaves out most of the hard parts.

What Are the Biggest Mistakes New Farmers Make?

The biggest mistake is starting too big. I know that sounds like obvious advice, but it is genuinely hard to follow when you are excited and your seed order just arrived. We overplanted our first batch of trays — seeded twelve varieties in the first week when we should have started with three. Half of those varieties we had never grown before. We did not know their germination quirks, their ideal blackout duration, or their harvest timing. Three of those twelve trays went straight into the compost bin. That was wasted seed, wasted medium, and wasted time during a week when every dollar counted.

Start with two or three varieties you have researched thoroughly. Grow them five times. Get the process dialed in. Then add the next variety. I tell this to every aspiring farmer who contacts us, and most of them do what I did — order ten seed types anyway. Some lessons only stick when you learn them the expensive way.

Why Does Consistency Matter More Than Ambition on a Small Farm?

Early on, I wanted big harvests. Impressive harvests. Trays overflowing with beautiful greens that I could photograph and post. What I actually needed was small, reliable, predictable harvests that showed up on the same day every week. Restaurants do not want a surprise twenty pounds of sunflower microgreens on Tuesday followed by nothing for ten days. They want two pounds every Wednesday without fail.

We switched to staggered planting — seeding a set number of trays on the same day each week so that harvests rotate in a consistent rhythm. It sounds obvious now, but it took us two months of irregular output before we built that discipline. Consistency is what turns a hobby grower into a business.

How Important Is Temperature Control for Microgreens?

More important than I expected. Most microgreens germinate and grow best between 68-75°F. Swing above 80°F and you get leggy, weak stems and increased mold risk. Drop below 60°F and germination slows to a crawl, throwing off your entire harvest schedule. In Florida, where ambient temperatures can hit 95°F in summer and dip into the 40s on winter nights, holding that range without climate control is impossible.

We invested in a dedicated growing space with temperature and humidity control after our first summer nearly cooked an entire week of trays. That was an expensive lesson — around $300 worth of seed and growing medium lost to a single hot weekend when the AC in our initial setup failed. Now we monitor temperature with digital sensors that alert us if conditions drift outside our target range. The equipment cost paid for itself within two months of prevented losses.

What Is the Hardest Part of Starting a Farm Business?

Cash flow timing. Nobody talks about this enough. Growing takes days, but getting paid takes weeks. You buy seeds and supplies on day one. You plant on day two. You harvest on day seven or eight. You deliver to a restaurant on day nine. They pay net-30. So you are looking at 40 days between spending money and receiving money — and during that entire stretch, you are buying more seeds and supplies for the next round of trays.

Farmers market sales are better for cash flow because you get paid the same day you sell. But market revenue is unpredictable — a rainy Saturday can cut your sales in half. We learned to maintain a cash reserve equal to at least six weeks of operating costs. Getting to that reserve took months of reinvesting everything the farm made. It was not glamorous, but it kept us from having to choose between buying seed and paying the electric bill.

Why Should Every Farm Keep Detailed Records?

Record-keeping is everything. I mean that literally. We track every single tray: seed lot number, sow date, germination rate, blackout duration, light exposure hours, ambient temperature, harvest date, yield weight, and any issues (mold, uneven germination, slow growth). That data is what turns random outcomes into repeatable results.

Here is a real example. We noticed that our pea shoot yields dropped by about 15 percent over three weeks last spring. Without records, we would have guessed at the cause — maybe the seeds, maybe the water, maybe the weather. With records, we could see that the drop correlated exactly with a switch to a new seed lot from a different supplier. The germination rate on the new lot was 78 percent versus 92 percent on the previous one. We contacted the supplier, got a credit, and switched back. Problem solved in a day instead of a month of guessing.

A spreadsheet works. A notebook works. An app works. The format does not matter. What matters is that you write things down every single day without exception.

Does YouTube Prepare You for Real Farming?

Partially. I watched dozens of microgreen growing videos before starting Wholly Water Farms, and I am grateful for every one of them. They taught me the basic process — seed, soak (for some varieties), sow, blackout, light, harvest. What they did not teach me was what to do when a full tray of broccoli microgreens develops a fuzzy white patch on day four. Or how to handle a customer who wants to negotiate your price down by 30 percent. Or what happens to your harvest schedule when you get sick for three days and nobody else knows the process.

The learning curve is steeper than any video suggests, and that is not a criticism of the creators. It is just the nature of translating information into hands-on skill. Growing microgreens is simple in concept and demanding in execution. The gap between those two things is where most of the real learning happens.

What Advice Would You Give Someone Starting a Farm?

Start smaller than your ambition tells you to. Build consistency before variety. Invest in temperature control early. Sell at farmers markets first to learn what customers actually want. Keep records on everything. Build a cash reserve before you quit your other job. And talk to other farmers — not influencers, not gurus, but people who are actually running small operations and dealing with the same challenges you will face. The farming community in Florida has been incredibly generous with advice, and I would not have made it through year one without it.

If you are interested in what we grow and how we do it, visit our microgreens page or come find us at a local farmers market.

Frequently Asked Questions

How much does it cost to start a microgreen farm?

Startup costs for a small microgreen operation range from $500 to $3,000 depending on scale. The essentials are shelving, grow lights, trays, growing medium, seeds, and a temperature-controlled space. Our first setup cost around $1,500, and we have invested more as the business has grown. The biggest ongoing expenses are seeds and electricity for lighting and climate control.

What is the ideal temperature for growing microgreens?

Most microgreens germinate and grow best between 68 and 75°F. Temperatures above 80°F cause leggy stems and increase mold risk. Temperatures below 60°F slow germination significantly. Investing in climate control for your growing space is one of the most important decisions you will make as a microgreen farmer.

How long before a small farm becomes profitable?

Every farm is different, but most small microgreen operations can reach break-even within three to six months if they have consistent sales channels. The challenge is cash flow timing — you spend money on seeds and supplies weeks before you get paid for the harvest. Building a cash reserve equal to six weeks of operating costs is essential for surviving the early months.

What records should a new farmer keep?

Track every tray with seed lot number, sow date, germination rate, blackout duration, light hours, ambient temperature, harvest date, yield weight, and any issues like mold or uneven growth. This data lets you identify problems quickly, replicate successful batches, and make informed purchasing decisions about seeds and supplies.

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