MICROGREEN BUSINESS GUIDE · REDWOOD CITY, CA

Start a microgreen business in Redwood City, CA.

Most Redwood City residents do not realize how little of the produce on local plates was grown anywhere in San Mateo County. The restaurants along Broadway and the new concepts around the courthouse plaza serve a high-spending base and still rely on distributors trucking in delicate greens. The Redwood City grower who steps up first becomes the obvious local name.

Quick Answer

You can start a microgreen business in Redwood City with under $400 in initial equipment and grow it into a $3,000 to $8,000 per month side income within 90 days. Here is the local demand picture, the unit economics at Redwood City wholesale prices, and the operating system used by working microgreen farms.

Walk into five chef-owned spots on Broadway and along the courthouse plaza and ask where the microgreens came from. How often does the answer point back to anywhere inside San Mateo County?

What Redwood City buys today

Redwood City has built one of the most active downtown dining cores on the Peninsula over the past decade, with the courthouse plaza and Broadway drawing both office-driven lunches and weekend dinner traffic. The demographic skews tech-employed, dual-income, and food-aware, which is the textbook setup for a premium microgreen business.

The Saturday farmers market downtown is one of the strongest on the Peninsula, with a buyer base that already treats local sourcing as baseline. The juice and wellness culture in the corridor along El Camino and the natural grocery scene layer in steady direct-to-consumer demand.

For indoor growing, the coastal climate is unusually friendly. Mild year-round temperatures hold a garage or spare-room grow space comfortably inside the productive window with minimal intervention, keeping electricity costs predictable and yields consistent.

If a grower in San Mateo or Menlo Park locks down the Broadway accounts in the next 60 days, what does that cost you over the next two years at Peninsula wholesale prices?

The math, in Redwood City prices

Redwood City sits at the upper end of California wholesale pricing, with chef-driven Peninsula accounts paying a real premium for genuinely same-day local trays. Here is what the unit economics look like at conservative Redwood City 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 Redwood City pricing.

Break-even week

Week 4

First positive cash week. Most growers hit it.

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

Picture the version of your year where the Broadway kitchens, the courthouse plaza concepts, and the Saturday market all run on standing delivery, and the question each week is which one new account to add.

Three things every working microgreen farm in Redwood City 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 Redwood City 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 Redwood City. 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 Redwood City 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 Redwood City farm on. The growing happens in your basement.

Try Grown Like A Pro free for 30 days →

Redwood City microgreen FAQ

How much can I make growing microgreens in Redwood City?
A working microgreen farm in Redwood City 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 Redwood City?
Sunflower, pea shoots, and radish are the three highest-volume sellers in nearly every U.S. city, including Redwood City. 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 Redwood City?
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 Redwood City's climate. Vertical shelving is the fastest path to higher revenue per square foot.
What is the best app for tracking microgreen production in Redwood City?
Grown Like A Pro is the operating system used by working microgreen farms in Redwood City. 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 Redwood City 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 Redwood City?
For farmers market and direct-to-consumer sales in Redwood City, 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 Redwood City?
Restaurant wholesale in Redwood City 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 Redwood City restaurants currently buy.

Related guides

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

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