1. Introduction

Organic alfalfa microgreens are a nutrient‐dense, versatile superfood that can transform your meals with their sweet, nutty flavour and crisp crunch. In just over seven days—from sowing to harvest—you can enjoy a lab‐tested, pathogen‐free crop bursting with vitamins A, C, and K along with essential minerals and fiber. This guide is crafted for both professional and home growers and details every step of the process using our specialized tray systems.

Imagery/Video Guidance:

• Photo: A vibrant hero shot showcasing freshly harvested alfalfa microgreens grown in both the Home Professional Tray Set and the 1122 Tray System.

2. Organic Alfalfa Microgreens: Variety Overview & Health Benefits

Key Features:

• Latin Name: Medicago Sativa
• Certified Organic: Yes
• Seed Treatment: Untreated and lab‐tested for pathogens
• Flavor & Texture: Sweet, nutty flavor with a refreshing crunch—ideal as a neutral base for various dishes.

Nutritional Benefits:

• Rich in vitamins A, C, and K
• Excellent source of fiber, calcium, magnesium, iron, and other essential minerals
• Supports healthy blood clotting, bone health, and glowing skin

Imagery/Video Guidance:

• Photo: Close-up shots of fresh microgreens alongside a nutritional chart.

3. Equipment & Materials

3.1 Tray Systems Overview

We offer two specialized tray systems designed for your growing scale:

• 1122 Tray System (Professional-Grade):
  • Usage: Ideal for urban vertical farms and professional growers.
  • Design: A three-tray system consisting of:
    • A bottom reservoir tray that holds water for bottom watering.
    • A growing tray with holes for filling with compost.
    • A top reservoir tray that serves as a cover.
  • Functionality:
    • The bottom tray delivers water via capillary action through the holes in the growing tray.
    • The top tray creates a blackout/humidity dome, ensuring even moisture and optimal germination.
  • Dimensions: 56cm x 28cm x 3cm (22" x 11" x 1 3⁄8")
  • Materials: BPA-free recycled food grade PP; heavy-duty injection moulded
  • Weight: 350g per tray
• Home Professional Tray Set (For Part-Time/Home Growers):
  • Usage: Perfect for home growers or part-time cultivators who want to grow microgreens on a windowsill or counter.
  • Design: Comprised of three BPA-free, recycled plastic trays made in England that mimic commercial growing techniques in a compact size.
  • Dimensions: 22cm x 17cm x 6cm
  • Materials: BPA-free recycled food grade PP; heavy-duty injection moulded
  • Weight: 104g per tray
  • Drainage: Two-tiered drainage holes for optimum moisture control
  • Capacity & Setup:
    • Bottom Tray Capacity: 1200ml
    • Use 3 × 10cm coco discs with 400ml water per disc or half a 650g coco brick to fill the trays perfectly.
  • Key Benefits:
    • The 6cm tray depth (versus 3cm in the professional system) helps maintain consistent moisture and easier maintenance—ideal for part-time growers.
    • Enables cultivation of a wide variety of microgreens in a compact, user-friendly system.

3.2 Seeding Rates & Container Guidelines

• Home Professional Tray Set: Recommended seeding density is 7g of alfalfa seeds per tray. A sparser rate produces larger leaves; heavier seeding increases stem proportion.
• 1122 Tray System (Professional): Recommended seeding density is 30g of alfalfa seeds per tray. Heavier seeding results in more stems with smaller leaves.
• Important Considerations: The provided weights (7g and 30g) are on the safer side to manage humidity and reduce crop failure risks. Heavier seeding may increase mold risk.

Imagery/Video Guidance:

• Photo: Diagrams or infographics comparing sparse (7g) versus heavy (30g) seeding.
• Video: A tutorial discussing seeding density effects and humidity management.

3.3 Vertical Growing & Rack Setup (UK Specific)

Vertical growing maximizes space and is ideal for scaling up production. Here’s how to set up a vertical rack system optimized for microgreens:

• Choosing Your Rack:
  • Use sturdy, vertical shelving (e.g., kitchen wire-style racks) that allow for easy cleaning and optimal airflow.
  • Ideal rack size: 122cm wide x 45cm deep, fitting four 1122 trays per shelf.
  • Ensure the rack matches your tray dimensions for maximum efficiency.
• Rack Dimensions & Configuration:
  • Standard Rack Size: 122cm (width) x 45cm (depth)
  • Shelves: Typically 6 adjustable shelves per rack.
  • Tray Capacity Per Shelf: 4 trays; with 6 shelves, a rack can hold up to 24 trays.
• LED Lighting Setup:
  • Recommended: Two Barrina LED grow lights per shelf (or two Arize lynk LED for professional setups).
  • Installation: Space lights evenly to cover all trays.
  • Spacing & Positioning:
    • Shelves should be evenly spaced for optimal light and airflow.
    • LEDs should be 20–30cm above the trays.
    • Position warmer climate crops higher and cooler-loving varieties lower.
• Environmental Optimization:
  • Air Circulation: Use a small oscillating fan to reduce mold risk.
  • Temperature Control: Maintain 18–24°C with around 50% relative humidity.

Imagery/Video Guidance:

• Photo: A fully stocked vertical rack with labelled dimensions and lighting placement.
• Video: A tutorial on rack assembly, tray placement, and LED light installation.

4. Growing in Soil Using Our Tray Systems

Step 1: Preparing Your Growing Container

• Selecting the Tray:
  • Home Growers: Choose the Home Professional Tray Set for its compact size and excellent moisture retention. (Two reservoir, one growing tray)
  • Professional Growers: Use the 1122 Tray System to maximize yield with bottom watering. (Two reservoir, one growing tray)
• Container Preparation: Ensure the tray is clean and free of residues before adding compost, coco, or a grow mat.

Imagery/Video Guidance:

• Photo: A side-by-side comparison of the two tray systems in a clean workspace.
• Video: An overview of selecting and preparing your container.

Step 2: Soil Preparation

• Choosing Your Medium: Use high-quality coco coir, grow mats, or a nutrient-rich compost mix. Always ensure your coco is LOW “EC”.
• Hydrating Coco Coir:
  1. Unpack & Place: Remove the compressed coco coir block and place it in a bucket or container.
  2. Add Lukewarm Water: Slowly pour water (20–30°C) over the block.
  3. Soak & Expand: Let it soak for 15–30 minutes until it expands.
  4. Fluff: Break up clumps and fluff until even and light.
  5. Mix Nutrients: Stir in organic trace minerals and seaweed powder. (For more details, click here.)
• Filling the Tray: Fill your tray to the rim with the prepared medium before sowing your seeds.

Imagery/Video Guidance:

• Photo: A detailed shot of the coco coir hydration and nutrient mixing process.
• Video: A demonstration of rehydrating coco coir and filling the trays evenly.

Step 3: Sowing the Seeds

• Measuring & Distributing:
  • Home Professional Tray Set: Use approximately 7g of alfalfa seeds per tray.
  • 1122 Tray System: Use approximately 30g of alfalfa seeds per tray.
• Sowing Technique: Evenly spread the seeds over the soil surface—each seed spaced about one to two seed lengths apart.

Imagery/Video Guidance:

• Photo: Close-up images illustrating seed distribution for both systems.
• Video: A step-by-step guide on measuring and distributing seeds.

Step 4: Establishing a Humid Environment and Stacking Procedure

1. Initial Misting: Gently mist the seeds with a spray bottle to settle them into the compost.
2. Assembling the Three-Tray System:
   • Bottom Reservoir Tray: Provides bottom watering via capillary action—fill with water after germination begins.
   • Growing Tray: Place the growing tray (with holes and filled with compost) into the bottom reservoir.
   • Top Reservoir Tray: Stack atop the growing tray to create a blackout/humidity dome.
3. Applying Weight for an Even Canopy: Place a clean, heavy object (e.g., canned goods) on top to force roots into the compost.
4. Blackout and Stretch: (Optional) Leave lights off extra days to encourage stem elongation.
5. Maintaining Environmental Conditions:
   • Keep relative humidity around 50% and temperature between 18–24°C.
   • Use a fan to improve airflow during the 2–3-day critical germination phase.

Imagery/Video Guidance:

• Photo: A series of images showing misting, stacking, and weight application.
• Video: A demonstration of assembling the three-tray system and setting environmental conditions.

Step 5: Light Exposure & Growth Management

• Light Requirements: Once germination occurs (typically 1–3 days), remove the cover and expose microgreens to bright, indirect light or LED grow lights.
• Airflow & Temperature: Maintain gentle airflow and stable temperatures (18–24°C) to prevent mold and promote growth.
• Rotation: Rotate the tray periodically to ensure even light distribution.
• Misting and Care: Mist generously until germination; thereafter, water only via the bottom reservoir.

Imagery/Video Guidance:

• Video: A time-lapse video documenting growth under proper lighting conditions.

Step 6: Harvesting & Post-Harvest Handling

• Harvest Timing: Harvest when microgreens reach full colour and optimal size (typically 7–11 days).
• Cutting Technique: Use clean, sharp scissors or a knife to cut just above the soil level.
• Post-Harvest Care: Store harvested microgreens in an airtight container in the fridge; avoid excess moisture.

Imagery/Video Guidance:

• Photo: A series of images capturing the harvesting, rinsing, and drying stages.
• Video: A detailed tutorial on proper harvesting techniques and post-harvest care.

5. Tray Systems: In-Depth Product Details

5.1 1122 Tray System for Professional Growers

• Design:
  • Bottom Reservoir Tray: Holds water for bottom watering; water wicks upward uniformly.
  • Growing Tray with Holes: Sits atop the reservoir and is filled with compost.
  • Top Reservoir Tray: Covers the growing tray, creating a blackout/humidity dome.
• Key Features:
  • Dimensions: 56cm x 28cm x 3cm (22" x 11" x 1 3⁄8")
  • Materials: BPA-free recycled food grade PP; heavy-duty injection moulded
  • Weight: 350g per tray
  • Additional Uses: Ideal for bottom watering and integration with automated systems.
• Benefits: Ensures uniform moisture distribution and optimal germination, designed for repeated use in professional or urban vertical farms.

Imagery/Video Guidance:

• Photo: Detailed product images from multiple angles highlighting the three-tray configuration.

5.2 Home Professional Tray Set for Part-Time Growers

• Design & Features:
  • Comprised of three BPA-free, recycled plastic trays made in England.
  • Dimensions: 22cm x 17cm x 6cm
  • Materials: BPA-free recycled food grade PP; heavy-duty injection moulded
  • Weight: 104g per tray
  • Drainage: Two-tiered drainage holes for optimal moisture control
• Setup Details:
  • Bottom Tray Capacity: 1200ml
  • Use one 10cm coco disc with 400ml water per disc or half a 650g coco brick to fill the trays.
• Key Benefits: Brings commercial microgreen growing techniques to a compact, user-friendly system ideal for home growers.

Imagery/Video Guidance:

• Photo: Lifestyle images of the Home Professional Tray Set in a home kitchen or on a windowsill.
• Video: A comprehensive setup and review emphasizing ease of assembly and durability.

6. Advanced Tips & Best Practices

• Optimizing Seeding Density: Use about 30g per tray for the 1122 system and 7g per tray for the Home Professional Tray Set, or 0.0226 g per cm² for recycled containers.
• Harnessing Bottom Watering: Leverage the reservoir design for uniform moisture without overwatering.
• Light & Temperature Management: Use LED grow lights and maintain 18–24°C to prevent stretching.
• Maintaining Optimal Humidity: Aim for around 50% relative humidity to balance moisture and airflow.
• Air Circulation: Use a fan to promote even airflow and reduce mold risks.
• Nutrient Boost: Consider adding organic trace minerals or seaweed powder when prepping trays or as a liquid feed after seed leaves open.
• Experimentation: Optionally, try a blackout period (2–3 days) to assess its effect on stem length and yield.

Insights from Video Reviews: One video emphasizes an efficient stacking procedure that forces roots into the compost by drawing water upward from the bottom reservoir.

7. Common Issues & Troubleshooting

1. Mold & Fungal Growth
   • Mold thrives in moist, stagnant environments.
   • Prevention:
     • Use fans for air circulation.
     • Maintain ~50% humidity and avoid overwatering.
     • Sanitize trays and equipment between grows.
   • Identification: Differentiate fine, white root hairs from web-like mold growth.
   • Remediation:
     • Remove affected areas.
     • Apply a mild hydrogen peroxide solution (1-3%) if necessary.
2. Uneven Germination
   • Ensure seed quality and even distribution.
   • Keep trays level and use a weighted cover during the first 2–3 days.
3. Leggy or Weak Growth
   • Provide adequate lighting (12–16 hours daily) and rotate trays for even growth.
4. Pest Issues
   • Use sterile growing medium and sanitize equipment.
   • If pests appear, use natural deterrents like neem oil or insecticidal soap.
5. Overwatering & Underwatering
   • Overwatering: Look for yellowing leaves and soggy medium.
   • Underwatering: Look for wilting and dry soil.
   • Adjust watering schedules accordingly.
6. Nutrient Deficiencies
   • Use nutrient-rich, sterile growing medium.
   • If deficiencies occur, apply a diluted organic fertilizer as directed.
7. Contamination Risks
   • Practice strict hygiene when handling seeds and microgreens.
   • Use clean, potable water for irrigation.

8. Nutritional Profile & Health Benefits

Alfalfa microgreens are packed with nutrients, making them an excellent addition to a healthy diet:

• Vitamin A: Supports vision, immune function, and cell growth.
• Vitamin C: Essential for skin health and antioxidant protection.
• Vitamin K: Aids in blood clotting and bone health.
• Calcium: Supports strong bones and muscle function.
• Magnesium: Helps with nerve function and energy production.
• Iron: Essential for oxygen transport.
• Chlorophyll: Provides detoxifying properties.
• Antioxidant Properties: Rich in vitamins C and E to combat oxidative stress.
• Cholesterol Reduction: High saponin content may lower total and LDL cholesterol.
• Blood Sugar Regulation: Manganese aids in insulin function.
• Bone Health Support: Vitamin K, calcium, and magnesium contribute to bone strength.
• Skin Health Enhancement: Vitamins A and C promote collagen production.
• Boosts Digestion: Contains enzymes that aid in food breakdown.
• Supports Cardiovascular Health: Flavonoids and antioxidants reduce inflammation.
• Alkalizing Effect: Helps balance the body’s pH levels.

Incorporating alfalfa microgreens into your diet can enhance overall health and add versatility to meals such as salads, sandwiches, smoothies, and more.

9. Seed Quality & Sourcing

The success of your microgreen crop starts with high-quality seeds. Consider the following:

• Where to Buy Quality Seeds: Purchase from trusted sources like Grow Sow Greener—known for lab-tested, pathogen-free, high-germination-rate seeds.
• Factors to Consider: Look for seeds with at least an 85% germination rate, ensure purity, and confirm they are lab-tested.
• Storage Recommendations:
  • Store seeds in a cool, dark, and dry place in an airtight container.
  • For long-term storage, refrigerate or freeze unopened packets (note: frequent opening can reduce viability).

10. Culinary Uses & Recipe Ideas

Flavor & Texture:

• Taste: Mild, sweet, and nutty—ideal as a healthy neutral base.
• Texture: Crisp and refreshing; perfect for raw dishes or light cooking.

Serving Suggestions:

• Salads: Toss alfalfa microgreens with cucumber, tomato, and avocado for a nutritious salad.
• Garnishes: Use as an elegant garnish on fish, chicken, or cheese platters.
• Smoothies & Wraps: Add a crunchy, nutritious boost to your recipes.

Recipe Idea – Simple Alfalfa Microgreen Salad:

1. Ingredients: A generous handful of alfalfa microgreens, sliced cucumber, tomato, avocado, a drizzle of olive oil and lemon juice, salt, pepper, and fresh herbs.
2. Instructions: Gently toss all ingredients together and serve immediately to enjoy full crunch and flavor.

Imagery/Video Guidance:

• Photo: A beautifully plated salad featuring alfalfa microgreens.
• Video: A complete recipe tutorial from ingredient prep to final plating.

11. FAQs About Organic Alfalfa Microgreens

Q: How long does it take to grow alfalfa microgreens?

A: They are typically ready for harvest between 7–11 days when grown in soil using our tray systems.

Q: What seeding rate should I use?

A: Approximately 7g per tray for the Home Professional Tray Set and 30g per tray for the 1122 Tray System. For recycled containers, aim for 0.0226 g per cm².

Q: Which tray system should I choose?

A: It depends on your scale—Home Professional for compact, home use and the 1122 Tray System for professional or urban vertical farming.

Q: How do I ensure proper moisture without overwatering?

A: Use bottom watering—add water when the bottom reservoir is dry, and avoid overwatering by monitoring tray weight.

Q: What environmental conditions are optimal?

A: For larger setups, maintain 18–24°C and about 50% relative humidity with proper airflow.

12. Conclusion & Next Steps

Organic alfalfa microgreens offer incredible flavor, nutrition, and versatility. Whether you’re a part-time home grower using the Home Professional Tray Set or a professional utilizing the 1122 Tray System, this guide provides all the steps and tips needed for a bountiful harvest.

Next Steps:

• Choose the tray system that best fits your growing needs.
• Follow the detailed steps to prepare, sow, and nurture your microgreens.
• Experiment with advanced techniques to optimize yield and flavor.
• Enjoy our recipe ideas and share your successes with our growing community!

Imagery/Video Guidance:

• Photo: An inspiring final image of a bountiful tray of organic alfalfa microgreens ready to be enjoyed.
• Video (Optional): A closing message featuring community feedback and user success stories.