Start a Microgreens Farm: Garage to $4k/Mo Guide

The Opportunity

The restaurant supply chain for fresh garnishes is volatile. In 2026, wholesale prices for commercial microgreens have stabilized at a premium due to rising energy costs and labor shortages at large-scale growers. Independent chefs are actively seeking hyper-local suppliers to guarantee freshness, reduce food miles, and differentiate their menus. Microgreens fill a critical gap: they offer the highest nutritional density per weight and command the best price-per-square-foot of any crop you can grow indoors.

Timing is favorable for micro-enterprises. Restaurants are shifting from bulk commodity orders to small-batch, high-frequency deliveries to minimize waste. A micro-farm operating from a garage or basement can supply 5–10 local restaurants consistently, capturing margin that large distributors cannot touch because they lack the agility. You are not competing on volume; you are competing on freshness, reliability, and crop variety.

The Business Model

This business operates on a B2B wholesale model with a D2C (direct-to-consumer) overflow channel. Your primary revenue comes from weekly contracts with restaurants. Secondary revenue comes from farmers markets or local wellness cafes where you can sell premium pre-packaged mixes.

• Wholesale: Average $22–$28/lb. Common varieties (radish, pea, sunflower) run $18–$22/lb. Specialty crops (dragon beard, amaranth, edible flower mixes) reach $35–$45/lb. Rare items like saffron micro-variants or ultra-gourmet herbs can hit $60–$80/lb, though these require advanced technique and smaller volume.
• Retail: $40–$50/lb equivalent when sold as 2oz clamshells ($5–$6 each) at farmers markets.

Margins: Seed and soil costs are roughly $1.50 per tray. A standard 10x20 tray yields approximately 0.25 lbs of finished product. At $22/lb wholesale, that tray generates $5.50 in revenue. Gross margin on materials exceeds 70%. Your real costs are electricity (lighting/climate control), packaging, labor, and water filtration. Target a net profit margin of 40–50% once fully optimized.

Who Your Customers Are

Focus on high-turnover establishments that use microgreens as visual and flavor accents. Do not waste time on grocery stores; their margins are too thin and requirements too burdensome for a startup.

• Sushi Bars: Consistent buyers of pea shoots and sunflower greens. They need volume and reliability.
• Farm-to-Table Restaurants: Willing to pay premiums for rare varieties like mizuna, kale, or purple daikon mixes.
• Sushi/Steak Hybrid Lounges: High-garnish usage across multiple menu items.
• Local Farmers Markets: Affluent suburban shoppers buying 2oz packs for salads. This is your testing ground for new varieties and price sensitivity.

Find these customers by scanning menus online for "microgreens," "edible flowers," or "garden garnish." Use platforms like Yelp and TripAdvisor to identify top-rated spots within a 10-mile radius of your garage. A 10-mile delivery radius is critical; microgreens degrade in quality after 48 hours post-harvest.

Startup Costs & What You Need

You can launch a professional operation in a 200-square-foot usable growing space (part of a standard garage) for $1,400–$1,800. Avoid buying expensive turnkey kits; build for scalability.

• Vertical Racking System: 4-level metal shelving (20x10 ft). $350.
• LED Lighting: Full-spectrum bar lights (6000K), 4 per level. VIVOSun or Mars Hydro equivalents. $400.
• Grow Trays & Medium: 50 fabric grow trays (better drainage than plastic), coconut coir or peat pots. $150.
• Seeds: Bulk organic seeds from reputable suppliers (e.g., High Mowing Organic Seeds, Jung Seed Company). Focus on germination rate >95%. $100 for initial stock of 5 varieties.
• Climate Control: Oscillating fans, humidifier with hygrostat, HEPA air purifier (mold prevention). $200.
• Water Filtration: Reverse osmosis filter or UV sterilizer. Tap water chlorine kills roots; contaminants cause mold. $150.
• Packaging: Ventilated clamshells, labeling printer, banding machine. $100.
• Licenses & Testing: Cottage food permit (if applicable), commercial kitchen inspection fees, water testing lab. $150.

Total Estimated Startup: $1,700.

Revenue Projections

Assumptions: 200 sq ft growing area, 4 levels, 10-day production cycle, 80 trays per level.

• Capacity: 320 trays per cycle. Three cycles per month = 960 trays/month.
• Yield: 960 trays × 0.25 lbs = 240 lbs/month.
• Month 1 (Ramp-up): 20% capacity, testing varieties, securing first 2 contracts. Revenue: $400.
• Month 6 (Growth): 75% capacity, 8 restaurant contracts, consistent production. Revenue: $3,300. Gross Profit: $2,100.
• Month 12 (Scale): 100% capacity, premium mix optimization, $24/lb average price. Revenue: $5,760. Gross Profit: $3,700. After labor and overhead, net profit targets $2,500–$3,000/month.

To hit $4,000/month in net profit, you need to optimize pricing to $24/lb average and maintain 90% fill rates on contracts. This is achievable in under 500 sq ft total footprint (including staging and storage).

How to Get Started: Step-by-Step

1. 1 Validate Your Space: Ensure you have a room with stable temperature (65–75°F), access to water, and electrical capacity for LEDs. Measure usable floor space. Calculate rack layout ensuring 2 feet of walkway clearance.
2. 2 Secure Regulatory Approval: Contact your state's Department of Agriculture. Microgreens often fall under "produce" regulations, not cottage food. You may need a commercial kitchen license or a specific microgreen permit. Budget for annual water testing and pesticide residue testing to prove organic status.
3. 3 Build the Pilot System: Construct a 2-level rack with 20 trays. Install lights and fans. Do not build the full system until you have harvested and sold a pilot batch. This proves your technique and market interest.
4. 4 Source Proven Varieties: Start with "easier" crops: Red Radish (4-day cycle), Pea Shoots (8-day cycle), Sunflower (7-day cycle). Avoid fennel or broccoli until you master humidity control. Buy seeds in bulk; never use grocery store seeds.
5. 5 Master the Germination Protocol: Test germination rates. Soak seeds according to variety. Sow at correct density. Use bottom-watering methods to keep seed heads dry and prevent damping-off disease.
6. 6 Create a Sales One-Pager: Design a professional PDF showing photos of your crops, pricing, delivery windows, and food safety certifications. Include harvest dates and shelf-life guarantees.
7. 7 Deliver Samples: Walk into 15 target restaurants. Ask for the Chef or Owner. Deliver a fresh sample box with your one-pager. Offer a "first week free" trial to get on the order list. Reliability wins contracts.

Key Risks & How to Manage Them

• Mold and Botrytis: The #1 killer. High humidity and poor airflow cause crop loss. Mitigation: Use HEPA filters, maintain humidity below 70% during growth, ensure trays have drainage holes, and sanitize all equipment between cycles with food-safe hydrogen peroxide solution.
• Market Rejection: Chefs may reject quality due to inconsistent size or wilting. Mitigation: Standardize harvest height (usually 2–3 inches). Harvest early morning. Ship in ventilated containers. Never deliver wilted product; discount it immediately to retain the customer.
• Regulatory Shutdown: Selling produce without proper licensing can result in fines. Mitigation: Treat this like a food business from day one. Get your water tested. Keep logs of seed sources, harvest dates, and cleaning schedules. Insurance is non-negotiable once you have contracts.
• Labor Intensity: Seeding and harvesting are manual tasks. At scale, this becomes time-consuming. Mitigation: Use broadcast seeding techniques for speed. Consider a seed metering tool. Outsource harvesting or packaging to part-time help once revenue exceeds $2,000/month.

Measure your available garage or basement space and calculate your square footage for racking. Then, identify 10 restaurants within a 5-mile radius that currently charge over $55 for dishes garnished with greens, and draft a list of their names, chef contacts, and current menu prices to benchmark your potential value proposition.