Microgreens are young vegetable and herb seedlings harvested at the cotyledon stage. They are fast to grow, nutrient-dense, and ideal for small spaces. This guide gives practical steps to start growing microgreens at home with minimal equipment.
Why Grow Microgreens at Home
Microgreens need only a few square feet, make quick harvests, and can add fresh flavor to your meals year-round. They also reduce grocery trips and let you control seeds and growing conditions.
Growing them at home suits beginners, apartment gardeners, and anyone wanting a steady supply of fresh greens without a garden plot.
What You Need to Grow Microgreens
The basic supplies are inexpensive and commonly available. You can start small and scale up as you gain experience.
- Shallow trays or recycled containers with drainage holes (10–12 cm deep).
- Seed-starting mix or a good quality potting mix; some growers use coconut coir or hemp mats.
- High-quality seeds labeled for microgreens or untreated seeds.
- A spray bottle for gentle watering and a small tray for bottom watering.
- Access to natural light or a simple LED grow light.
Choosing Seeds for Microgreens
Not all seeds perform the same as microgreens. Choose varieties known for strong germination and flavor. Popular choices include sunflower, pea, radish, broccoli, mustard, basil, and arugula.
Start with 2–3 types so you can learn different speeds and textures. Mix and match for variety in taste and appearance.
Step-by-Step Microgreens Growing Guide
This step-by-step approach keeps processes clear and repeatable. Exact timing varies by seed type and room conditions.
1. Prepare Trays and Growing Medium
Fill trays with 1–1.5 inches of moistened growing medium. Level the surface so seeds sit evenly for uniform germination.
2. Sow Seeds Evenly
Broadcast seeds over the surface at a moderate density. For denser, leafier microgreens, sow more thickly; for delicate stems, reduce seed density.
Lightly press seeds into the medium so they have good contact. Do not bury most microgreen seeds—leave them near the surface.
3. Cover and Germinate
Cover trays with another tray, a dome, or a humidity cover for the first few days to retain moisture and encourage germination. Keep them in a warm, dark or dim place until seeds sprout.
4. Uncover and Provide Light
Once most seeds have sprouted (usually 2–7 days), remove covers and move trays to bright indirect light or under LED grow lights. Aim for 12–16 hours of light daily for compact growth.
5. Watering Routine
Use a spray bottle to mist leaves and the surface, or bottom-water by placing trays in a shallow water bath for a few minutes. Avoid overwatering to reduce mold risk.
Monitor moisture daily—microgreens need consistently moist but not waterlogged medium.
6. Timing to Harvest
Most microgreens are ready in 7–21 days depending on species. Harvest when cotyledons are fully open and first true leaves appear for larger varieties like peas.
Harvesting and Storing Microgreens
Use clean scissors or a sharp knife to cut microgreens just above the soil line. Harvest in the morning when plants are turgid for best shelf life.
- Rinse gently only if necessary; excess moisture shortens storage life.
- Store in an airtight container lined with a dry paper towel in the refrigerator for up to 7 days depending on type.
- Use delicate varieties sooner and heartier ones like sunflower or pea later.
Pest and Disease Prevention
Common issues include damping off, mold, and aphids. Good hygiene and air circulation prevent most problems.
- Sanitize trays between uses and use fresh medium.
- Avoid overwatering and ensure proper drainage.
- Use a small fan for gentle air movement if molds reoccur.
Small Case Study: Selling Microgreens Locally
Emma, an apartment gardener, began growing sunflower and basil microgreens on a 4-tray setup. She harvested twice a week and sold 1/2-pound bundles at a local farmers market.
After three months she expanded to 8 trays and added radish for color. Income covered seed and supply costs, earning a modest profit while building local repeat customers.
Key takeaways from her experience were consistent quality, good packaging, and clear labeling with use-by dates.
Practical Tips and Examples
- Example schedule: Sow on Monday, germinate 2–4 days, expose to light on day 4, harvest day 10–14 depending on seeds.
- Try a flavor combo: arugula microgreens for peppery notes, sunflower for crunch, and basil for aroma.
- Label trays with seed type and sow date to track growth cycles and improve timing.
With basic supplies, a small amount of time each day, and a little experimentation, you can reliably grow microgreens at home. Start with a couple of trays and extend your setup as you learn what works best in your space.