MICROGREEN BUSINESS GUIDE · SAN FRANCISCO, CA

Start a microgreen business in San Francisco, CA.

Most San Francisco chefs already know their microgreens were cut days before service. The trays on the line came up from greenhouses in the Central Valley or down from regional growers, and the freshness gap is wide open in a city that prides itself on California cuisine. The grower who plants inside the seven-by-seven and delivers same-morning is the one who wins the accounts.

Quick Answer

You can start a microgreen business in San Francisco with under $400 in initial equipment and grow it into a $3,500 to $9,000 per month side income within 90 days. Here is the local demand picture, the unit economics at SF wholesale prices, and the operating system used by working microgreen farms.

How many of the chef-driven restaurants in the Mission, Hayes Valley, and the Marina right now are plating microgreens that were not actually grown in San Francisco?

What San Francisco buys today

San Francisco is the birthplace of California cuisine and one of the densest fine-dining markets in the country per square mile. From tasting-menu rooms in Hayes Valley to neighborhood bistros in the Mission and the Marina, microgreens are baseline plating, and the chefs have an unusually high standard for freshness because the city's food identity is built on it.

The Ferry Building Marketplace and the weekly farmers markets across the city give you a direct-to-consumer channel that pays close to retail. The wellness and juice bar culture in the Marina, Pacific Heights, and SoMa, plus the natural grocery scene, layer in additional buyer types beyond restaurants.

For indoor growing, San Francisco's coastal climate is genuinely friendly. Mild year-round temperatures mean a small garage or spare-room grow space rarely fights extremes, which keeps power bills predictable and germination consistent. A 5 by 10 foot footprint in a Sunset garage or a Mission flat can outperform most side businesses by a wide margin.

If another grower in San Francisco locks down the Mission and Hayes Valley chefs in the next 60 days, what does that cost you in walked-away revenue over the next two years?

The math, in San Francisco prices

San Francisco restaurant wholesale prices for microgreens sit at the high end of the national range, with chef-driven kitchens paying a meaningful premium for genuinely local trays. Here is what the unit economics look like at conservative SF numbers.

Startup cost

$400

Trays, soil, seed, lights. Used gear cuts this in half.

Per-tray net

$20-$30

After seed, soil, packaging, delivery.

Trays per week

100

Target for $3K-$5K/mo at San Francisco pricing.

Break-even week

Week 4

First positive cash week. Most growers hit it.

What that looks like in San Francisco square footage

A 10 by 10 foot room with two vertical shelving units holds 60 to 80 active trays. That is enough to produce $3,000 to $5,000 per month in San Francisco at standard wholesale prices. A two-car garage doubles it. A basement triples it.

What would it look like, six months from now, if the salads, garnishes, and tasting-menu plates at the kitchens within a two-mile radius of your house all carried your label? That is not a stretch goal in a market this concentrated, that is just consistent delivery on schedule.

Three things every working microgreen farm in San Francisco runs on

  1. A seed density and watering plan you trust. The number one cause of failed trays for new growers is over- or under-seeding. The cheat sheet inside Grown Like A Pro gives you grams per 10x20, soak hours, blackout days, harvest day, and watering for sixty-one varieties.
  2. A rotation tracker. Once you are running thirty-plus trays per week, you cannot remember what is in blackout, what is in light growth, what harvests Tuesday. A spreadsheet works for the first month. After that you need a system that pings you the day before each harvest and reorders seed before you run out.
  3. A customer + invoice layer. Restaurants in San Francisco want predictable weekly invoices and net-15 terms. Farmers market customers want clamshell tracking. Both want consistency. The app handles both.

The IKEA test

If you can follow an IKEA instruction sheet without screaming at the family, you can grow microgreens at a commercial level in San Francisco. The steps are about that difficulty: open the box, lay out the parts, follow the picture, repeat. Trays are the bookcase. Seed is the dowels.

If you ever did struggle with the IKEA bookshelf, that is exactly why Glappy lives inside the app. Glappy is the in-app coach that breaks every step down barney style, in your own language, from "how do I plant my first tray" to "why is this tray going leggy at day five and what do I do about it tonight." Type the question, get a step-by-step answer. There is no question too basic. The whole point is that a San Francisco grower starting today is not on their own.

What you are not buying

You are not buying a course. You are not buying a hype product. You are not buying seed from us, and you are not buying trays from us. We do not sell either. Grown Like A Pro is the operating system you run your San Francisco farm on. The growing happens in your basement.

Try Grown Like A Pro free for 30 days →

San Francisco microgreen FAQ

How much can I make growing microgreens in San Francisco?
A working microgreen farm in San Francisco produces $3,000 to $8,000 per month within 90 days of starting. The math: 100 trays per week, $20 to $30 net revenue per tray, harvested in a basement, garage, or spare room. The ceiling is set by how many restaurants and farmers market customers you can serve, not by the growing setup.
Is it legal to sell microgreens in CA?
Yes. In most of California, microgreens fall under the state's cottage food law for direct-to-consumer retail at farmers markets and to private customers. Restaurant wholesale typically requires a basic food handler permit. Verify with the California Department of Agriculture before you sign a wholesale contract.
What microgreens sell best in San Francisco?
Sunflower, pea shoots, and radish are the three highest-volume sellers in nearly every U.S. city, including San Francisco. Broccoli is the highest-margin variety because of its sulforaphane reputation with health-focused buyers. Specialty varieties like amaranth and shiso command premium pricing from chef-driven restaurants.
How much space do I need to grow microgreens in San Francisco?
A 10 by 10 foot room with two shelving units holds 60 to 80 active trays, which is enough to produce $3,000 to $5,000 per month. A basement, garage corner, spare bedroom, or sunroom all work in San Francisco's climate. Vertical shelving is the fastest path to higher revenue per square foot.
What is the best app for tracking microgreen production in San Francisco?
Grown Like A Pro is the operating system used by working microgreen farms in San Francisco. It handles seed density math, watering schedules, harvest timing, inventory, customer orders, and the financial side. Free 30-day trial with no credit card.
How long does it take to learn to grow microgreens commercially?
Most growers in San Francisco are selling their first trays within 30 days of starting. Commercial proficiency, meaning you can run 50-plus trays per week without losing crops to mold or under-seeding, takes 60 to 90 days. The seed density and watering math is the single biggest predictor of how fast you get there.
Do I need a license to sell microgreens in San Francisco?
For farmers market and direct-to-consumer sales in San Francisco, most growers operate under California's cottage food law with no special license. For wholesale to restaurants and grocery stores, you typically need a basic food handler permit, a sales tax permit, and depending on volume, an inspection from your county health department.
How do I price microgreens to restaurants in San Francisco?
Restaurant wholesale in San Francisco runs $1.50 to $2.50 per ounce for standard varieties, $3 to $5 per ounce for specialty varieties like shiso, micro basil, or amaranth. Sell by the pound for repeat accounts. Local fresh commands a premium over the shipped-in product that most San Francisco restaurants currently buy.

Related guides

Once you have the San Francisco math in your head, the next read is the density chart that drives every tray you plant.

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