MICROGREEN BUSINESS GUIDE · SEATTLE, WA

Start a microgreen business in Seattle, WA.

Most Seattle growers do not realize how thin the local microgreen supply actually is relative to the demand. Between Capitol Hill, Ballard, Belltown, and the West Seattle and Fremont restaurant corridors, hundreds of independent kitchens plate microgreens nightly, and the bulk of that product still arrives from Oregon greenhouses or California distributors. The Seattle grower who closes that gap owns a category chefs are already asking for.

Quick Answer

You can start a microgreen business in Seattle 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 Seattle wholesale prices, and the operating system used by working microgreen farms.

When you walk through Capitol Hill or Ballard on a Saturday and see microgreens on every other brunch plate, how often do you stop to wonder how many were actually cut inside King County that week?

What Seattle buys today

Seattle's restaurant scene is unusually chef-driven for a city its size. The Pacific Northwest tasting menus, the Ballard seafood houses, the Capitol Hill cocktail bars with serious food programs, and the West Seattle neighborhood bistros all use microgreens for plating and garnish. The farm-to-table identity here is not marketing language, it is what diners actively pay extra for.

The direct-to-consumer side is anchored by Pike Place, the University District market, Ballard Sunday, and the Capitol Hill and West Seattle weekly markets. The buyer profile is dense with the exact target demographic: educated, higher-income, health-conscious, and willing to pay a premium for product cut that morning rather than shipped in by distributors.

Seattle's reputation as a wet, dark city is the indoor grower's secret weapon. Heated apartments hold steady winter temperatures, summers rarely require AC, and humidity in a basement or spare room stays naturally moderate. A 5 by 10 foot footprint in a Greenwood basement or a Beacon Hill garage produces more revenue per square foot than almost any other use of the space.

Every week you delay, another Capitol Hill or Ballard chef signs a standing order with a distributor pulling product from a Willamette Valley greenhouse. What does it cost you when the kitchens you wanted to sell to are already locked into someone else's delivery schedule?

The math, in Seattle prices

Seattle restaurant wholesale prices for microgreens sit above the national average given the cost of living and the depth of the farm-to-table market. Here is what the unit economics look like at conservative Seattle 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 Seattle pricing.

Break-even week

Week 4

First positive cash week. Most growers hit it.

What that looks like in Seattle 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 Seattle 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 is restaurant delivery across Capitol Hill and Ballard, Saturday is Pike Place or your neighborhood market, and the system tells you exactly which trays to cut. What changes about your day job when the income side is running on rails?

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

Try Grown Like A Pro free for 30 days →

Seattle microgreen FAQ

How much can I make growing microgreens in Seattle?
A working microgreen farm in Seattle 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 WA?
Yes. In most of Washington, 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 Washington Department of Agriculture before you sign a wholesale contract.
What microgreens sell best in Seattle?
Sunflower, pea shoots, and radish are the three highest-volume sellers in nearly every U.S. city, including Seattle. 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 Seattle?
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 Seattle's climate. Vertical shelving is the fastest path to higher revenue per square foot.
What is the best app for tracking microgreen production in Seattle?
Grown Like A Pro is the operating system used by working microgreen farms in Seattle. 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 Seattle 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 Seattle?
For farmers market and direct-to-consumer sales in Seattle, most growers operate under Washington'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 Seattle?
Restaurant wholesale in Seattle 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 Seattle restaurants currently buy.

Related guides

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

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