How to Grow Microgreens Indoors – A Complete Beginner’s Guide (Step-by-Step)

What Are Microgreens?

Microgreens are young vegetable greens harvested just after the first true leaves develop. They are smaller than baby greens but bigger than sprouts. Popular microgreens include broccoli, radish, sunflower, mustard, and pea shoots. They are packed with vitamins, antioxidants, and intense flavors — making them perfect for salads, sandwiches, smoothies, and garnishing dishes.

Why Grow Microgreens Indoors?

• Fast growth (ready in 7–14 days)
• Perfect for small spaces and apartments
• Low cost, high yield
• Chemical-free and pesticide-free
• Fresh and nutritious year-round

Materials Needed to Grow Microgreens Indoors

• Shallow trays (with or without drainage holes)
• Organic microgreen seeds
• Potting soil or cocopeat
• Spray bottle
• Water
• Light source (sunlight or grow lights)

Step 1: Choose the Right Seeds

Best microgreens for beginners include radish, broccoli, mustard, pea shoots, sunflower, and fenugreek (methi). Always use untreated seeds labeled for microgreens.

Step 2: Prepare the Growing Tray

Fill the tray with 1–1.5 inches of moist potting soil. Gently press the soil evenly without compacting too tightly. If using trays without drainage holes, avoid overwatering.

Step 3: Sow the Seeds

Sprinkle seeds evenly across the soil surface. Sow densely but avoid heavy overlapping. Lightly press seeds into the soil and spray water gently. Do not bury seeds deeply.

Step 4: Cover and Germinate (Blackout Period)

Cover the tray with a lid, another tray, or newspaper for 2–4 days until seeds sprout. This helps strong root development.

Step 5: Provide Light

Once sprouts appear, remove the cover and place the tray near a sunny window (4–6 hours of sunlight) or under LED grow lights for 10–12 hours daily. Rotate trays daily for even growth.

Step 6: Water Carefully

Use a spray bottle initially. After roots establish, bottom watering works best. Keep soil moist but not soggy. Overwatering can cause mold.

Step 7: Harvest Microgreens

Microgreens are ready in 7–14 days when 2–4 inches tall. Use clean scissors and cut just above soil level. Rinse lightly before use.

Common Problems & Solutions

• Mold Growth – Avoid overwatering and improve airflow.
• Leggy Plants – Provide more light.
• Yellow Leaves – Usually normal before light exposure.

Final Thoughts

Growing microgreens indoors is simple, beginner-friendly, and highly rewarding. In just 7–14 days, you can harvest fresh, nutrient-dense greens right from your kitchen. Start with easy varieties and enjoy fresh microgreens all year round.