Microgreens trays

Microgreens trays are hydroponic growing systems that produce nutritious sprouts in a few days, ideal for urban farming and healthy eating.

About this subject

Microgreens are vegetables harvested shortly after germination, typically between 7 to 14 days after planting, when the first true leaves emerge. Growing trays, often stacked in vertical systems, allow high-density production in small spaces like apartments or urban greenhouses. Common substrates include coconut coir, peat, or hydroponic felt, ensuring moisture retention and proper aeration.

Nutritional value is remarkable: studies show microgreens can contain 4 to 40 times more nutrients than mature plants, depending on the variety. Radish, broccoli, kale, and sunflower are among the most popular. In gastronomy, chefs use microgreens as garnishes to enhance flavor and texture in upscale dishes. Major supermarket chains now sell ready-to-eat packages.

Cultivation requires misting or capillary irrigation, strong indirect light or specific LEDs, and temperatures between 18°C and 24°C. Pests are rare, but fungi can develop with excess moisture. Crop rotation and tray sanitation are essential practices. Globally, demand has surged driven by healthy eating trends and the slow food movement, with local producers supplying restaurants and consumers.

Frequently Asked Questions

What are the easiest microgreens to grow at home?

Radish, broccoli, kale, and sunflower are ideal for beginners, as they germinate quickly and require minimal care.

How long does it take to harvest microgreens?

Typically 7 to 14 days, depending on the variety and light/temperature conditions.

Do microgreens need fertilizer to grow?

No, seeds contain enough nutrients for the first days. Fertilization is optional for longer cycles.