What growing medium and containers should I use?
The growing medium affects moisture, mold risk, harvest cleanliness, and cost per tray. Options range from soil and coconut coir to hydroponic mats and recycled household containers.
- Use seed-starting soil for robust varieties4
Seed-starting mix produces the highest yields and best flavor, especially for large-seeded varieties like sunflower and pea shoots. Microgreens grow one day faster in soil than on hydroponic mats.
📌 best practice2/10/2026, 5:48:29 AM
🛠️ Seed-starting mix, trays
- Pick the right tray size for your space4
Standard 1020 trays (10x20 inches) are the industry standard, but smaller 5x5 trays work well for testing varieties or growing on a countertop.
📌 research2/10/2026, 5:48:38 AM
🛠️ 1020 trays or 5x5 trays
- Repurpose household containers to save money3
You don't need to buy specialized trays to grow your first batch of microgreens. Many common household containers work perfectly and cost nothing.
📌 diy2/10/2026, 5:48:46 AM
🛠️ Recycled containers, soil, seeds
- Try hydroponic grow mats for clean harvests4
Hemp, jute, and BioStrate felt mats provide a soilless growing surface that produces cleaner microgreens with less mess. They're preferred by growers selling to restaurants where soil contamination is unacceptable.
📌 commercial2/10/2026, 5:48:22 AM
🛠️ Hydroponic grow mats, trays
- Use coconut coir as the best all-around medium5
Coconut coir is the most recommended growing medium for microgreens. It's naturally sterile, retains moisture without waterlogging, costs less than soil, and is a renewable agricultural byproduct.
📌 best practice2/10/2026, 5:48:13 AM
🛠️ Coconut coir block, trays