MICROGREEN BUSINESS GUIDE · SAN DIEGO, CA

Start a microgreen business in San Diego, CA.

Most San Diego chefs do not realize the microgreens on their plates were cut four to seven days before service in a Riverside or Los Angeles greenhouse. The Little Italy trattorias, the La Jolla seafood houses, and the North Park gastropubs all want hyperlocal product, and almost none of them are actually getting it. The San Diego grower who closes that distance is the one chefs call back.

Quick Answer

You can start a microgreen business in San Diego with under $400 in initial equipment and grow it into a $3,000 to $7,500 per month side income within 90 days. Below is the local demand picture, the unit economics at San Diego wholesale prices, and the operating system used by working microgreen farms.

If you walked into ten chef-driven restaurants between Little Italy and North Park on a Tuesday and asked where their microgreens were cut, how many would actually point to a grower inside San Diego County?

What San Diego buys today

San Diego's food culture has shifted dramatically in the last decade. The fine dining concepts in La Jolla and Downtown, the modern Mexican kitchens in Barrio Logan, the seafood houses on the bay, and the craft brewery food programs in North Park and South Park all plate microgreens regularly. Most of that product still arrives from Los Angeles area distributors, and the freshness gap is real by the time it hits service.

The buyer base extends well past restaurants. The Hillcrest and Pacific Beach farmers markets pull serious direct-to-consumer demand, the wellness and juice bar culture along the coast is unusually deep, and the demographics in Carmel Valley, Del Mar, and Rancho Santa Fe match the microgreen buyer profile almost perfectly. Higher-income, health-conscious, willing to pay for quality.

The climate is the unfair advantage no one talks about. Year-round mild temperatures mean a converted garage or spare bedroom holds growing conditions without expensive HVAC. No winter heating, no summer cooling crisis, and a 5 by 10 foot footprint in Clairemont or Chula Vista can outproduce a much bigger setup in a tougher climate.

Every month you wait, another La Jolla or Little Italy chef locks into a standing order with a Los Angeles distributor. What does it cost you when the kitchens you wanted to sell into are already on someone else's truck route?

The math, in San Diego prices

San Diego restaurant wholesale prices for microgreens run above the national average given the cost of living and the depth of the chef-driven coastal market. Here is what the unit economics look like at conservative San Diego 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 Diego pricing.

Break-even week

Week 4

First positive cash week. Most growers hit it.

What that looks like in San Diego 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 Diego at standard wholesale prices. A two-car garage doubles it. A basement triples it.

Picture the version of your week where Sunday is the planting day, Tuesday and Friday are restaurant deliveries from Little Italy to La Jolla, Saturday is the Hillcrest market, and the system tells you exactly which trays to cut. What changes about the rest of your week when the income side runs on autopilot?

Three things every working microgreen farm in San Diego 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 Diego 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 Diego. 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 Diego 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 Diego farm on. The growing happens in your basement.

Try Grown Like A Pro free for 30 days →

San Diego microgreen FAQ

How much can I make growing microgreens in San Diego?
A working microgreen farm in San Diego 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 Diego?
Sunflower, pea shoots, and radish are the three highest-volume sellers in nearly every U.S. city, including San Diego. 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 Diego?
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 Diego'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 Diego?
Grown Like A Pro is the operating system used by working microgreen farms in San Diego. 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 Diego 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 Diego?
For farmers market and direct-to-consumer sales in San Diego, 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 Diego?
Restaurant wholesale in San Diego 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 Diego restaurants currently buy.

Related guides

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

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