MICROGREEN BUSINESS GUIDE · ALUM ROCK, CA

Start a microgreen business in Alum Rock, CA.

Most people in Alum Rock do not realize how little of the microgreen supply behind the East Side's kitchens is actually grown nearby. The taquerias, family kitchens, and newer chef-driven spots along the foothill edge of San Jose mostly buy greens trucked in from elsewhere, cut days before they land. The Alum Rock grower who delivers trays harvested that morning fills a gap the distributors never bothered with.

Quick Answer

You can start a microgreen business in Alum Rock 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 Silicon Valley prices, and the operating system used by working microgreen farms.

Walk the restaurants along the East Side foothills and ask where the microgreens come from. How often is the answer a distributor truck instead of a grower who lives in the same neighborhood?

What Alum Rock buys today

Alum Rock is a foothill community on the East Side of San Jose, a dense, diverse, working-and-rising area named for the historic Alum Rock Park canyon. Its food culture runs deep on family-owned Mexican and Vietnamese kitchens, with a growing layer of newer chef-driven concepts as the East Side draws younger Silicon Valley households.

That mix is an underserved opening. The distributors that dominate the high-visibility downtown and west-valley rooms pay far less attention to East Side independents, which leaves a local grower with first-mover room on accounts that still want quality and freshness. The broader San Jose farmers market network and the dense surrounding population give a direct-to-consumer channel alongside the wholesale base.

For indoor growing the climate is straightforward. The valley floor runs warm and dry in summer, so a spare room or garage with a window unit holds the 65 to 75 degree range microgreens want, and mild winters keep germination steady the rest of the year.

Every month you wait, the East Side kitchens you could be supplying settle into the same out-of-town distributor habit. What does that cost you in lost accounts over the next two years in a neighborhood nobody else is working?

The math, in Alum Rock prices

Alum Rock sits inside the Silicon Valley pricing tier, and even the underserved East Side independents pay strong prices for genuinely local cut-to-order greens. Here is what the unit economics look like at conservative 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 Alum Rock pricing.

Break-even week

Week 4

First positive cash week. Most growers hit it.

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

Picture the version of your week where the family kitchens and new concepts along the East Side foothills all run your greens, the weekend market clears your retail trays, and the app tells you exactly what to cut. What opens up when you are the only local grower they can call?

Three things every working microgreen farm in Alum Rock 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 Alum Rock 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 Alum Rock. 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 Alum Rock 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 Alum Rock farm on. The growing happens in your basement.

Try Grown Like A Pro free for 30 days →

Alum Rock microgreen FAQ

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

Related guides

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

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