This is a stackable 3D-printed seedling tray, specifically designed for growing microgreens or sprouts. It’s a popular tool for home gardening and soilless cultivation.

Key Features (tailored to your design)

Stackable, space-saving design allows multiple trays to be stacked vertically, enabling multi‑layer cultivation during the seedling stage. When not in use, they can be neatly stacked away—perfect for small spaces like balconies or windowsills.

Efficient drainage to prevent root rot: Long, perforated channels at the base ensure excess water drains quickly, avoiding waterlogging while keeping the growing medium (such as paper towels or coconut coir) consistently moist—ideal for the shallow‑rooted needs of microgreens.

Lightweight and reusable: Made from 3D‑printed materials like PLA or PETG, these trays are both lightweight and durable. After cleaning, they can be reused, making them far more environmentally friendly than single‑use plastic trays. Convenient side handles also make it easy to carry and rearrange the trays.

Versatile for various growing scenarios: Suitable for soilless sprout cultivation (e.g., pea shoots, wheatgrass, radish sprouts), and compatible with seedling paper or growing media for nurturing vegetable and herb seedlings—making it a true “all‑purpose seedling tray” for home gardening.

How to Use This Tray

Preparation: Line the tray with seedling paper, kitchen paper towels, or coconut coir, then evenly scatter the seeds.

Watering and moisturizing: After thorough watering, excess water will drain out through the bottom slots; you can place a catch tray underneath to maintain a humid environment.

Stacking for germination: In the early stages, stack several trays together to create a dark, high‑humidity “germination environment,” boosting the germination rate. Once the seeds begin to sprout, separate the trays to expose them to light.

Daily care: Lightly mist the medium with water 1–2 times per day to keep it moist. In about 1–2 weeks, you’ll be ready to harvest fresh microgreens!