21cells Thickened Seedling Tray

The Horyard 21-cell seed starting tray is a rigid plastic propagation tray designed for seed germination and seedling cultivation. Its neat independent cells and stable flat structure simplify sowing, seedling management and transplant operations. This durable plug tray fits commercial nurseries, vegetable farms, flower greenhouses, garden centers, landscaping seedling projects and plant wholesalers.

Specifications

Depth and weight can be adjusted according to production requirements. Please contact us for confirmation before ordering.

Product Features

Thickened PVC/PET material

21 independent cells for seed germination and seedling raising

Suitable for flowers, vegetables and young saplings

Drainage holes in each cell to discharge excess water

Standard uniform cells for easy sowing and transplanting

Stackable design to save storage and shipping space

Available for bulk wholesale and OEM orders

Material and Color Options

Our seed starting trays are manufactured with thickened PVC/PET/PS material, and black is the standard color. Please contact us for further information if you require alternative materials, custom colors or customized weight.

Applications

Vegetable seedling cultivation

Flower and ornamental plant propagation

Herb and small sapling raising

Commercial nursery seedling production

Greenhouse seeding and centralized management

Vegetable farm seedling breeding

Garden center seedling cultivation

Landscaping seedling projects

Home & hobby gardening

Automatic sowing and mechanical transplanting

Customization Services

1.Color Custom colors are available to meet your demands. Black is our standard color, and other colors can be customized as requested.

2.Gram Weight & Thickness Multiple gram weight options for different thickness levels are optional. Lightweight, standard, medium duty, heavy duty and ultra heavy duty trays can be produced according to your usage scenarios.

3.Packaging & Printing Custom printing service is supported. We can print your logo, product specifications, barcode and other information on export cartons.

4.Extra Custom Options We provide one-stop customized solutions. Feel free to contact us if you have special requirements on raw materials, cell quantity, drainage structure and other details.

Packing & Loading

The seed starting trays can be stacked neatly to save loading space. Packaging can be arranged in export cartons, pallets, or other packing solutions according to order quantity and shipping requirements. Container-loading plans are available upon request.

FAQ

Q: What materials are used for the 21-cell seedling trays?

A: Our 21-cell plug trays are mainly made of thickened PET plastic. PVC and PS materials are also available for customization. Black is the standard color, and other colors can be produced on request.

Q: Can I adjust the thickness/gram weight of the seed starting trays?

A: Yes. Multiple gram weight options are supported. You can choose lightweight, standard, heavy-duty or ultra-heavy-duty specifications according to your planting and turnover demands.

Q: Are drainage holes designed on each cell?

A: Each cell comes with independent drainage holes to drain excess water, avoid root rot and create a healthy growing environment for seedlings.

Q: What plants are suitable to grow in the 21-cell seedling tray?

A: It is ideal for seed germination and seedling raising of vegetables, flowers, herbs and small saplings, widely used in greenhouses, commercial nurseries and landscaping projects.