On The Grow 128-Cell Plug Trays for Seedlings
10-Pack | 1,280 Total Plant Starts | Standard 10×20 Size
Start more plants in less space with these 128-cell plug trays, designed for efficient seed starting, uniform germination, and easy transplanting. Each tray features 128 individual 1-inch cells, giving you a total of 1,280 plant starts per 10-pack—ideal for growers who want consistency, organization, and scalability.
These plug trays are a solid option for home gardeners, indoor growers, educators, and small-scale farms looking to streamline propagation without investing in premium-priced options.
Why Growers Choose These 128-Cell Plug Trays
High-Density Seed Starting: Each tray holds 128 evenly spaced cells, allowing you to start a large number of seedlings in a compact footprint. Perfect for batch planting and efficient use of grow racks, tables, or greenhouse space.
Reusable & Flexible, Yet Sturdy: Made from Polystyrene (PS) plastic, these trays offer a balance of light flexibility and structural strength. They hold their shape during use while still allowing for easier plant removal during transplanting.
Optimized Drainage: Each cell includes a 0.314-inch drainage hole, promoting proper water flow and reducing the risk of waterlogging or damping-off issues during early growth stages.
Standard 10×20 Tray Size: Compatible with common 10×20 trays, racks, humidity domes, and watering setups—making them easy to integrate into existing grow systems.
Best For
- Home gardeners starting multiple varieties at once
- Indoor growers using shelves or grow racks
- Educators and classrooms teaching plant propagation
- Market gardeners and small farms producing uniform plant starts
Ideal Uses
- Seed starting
- Plant starts for transplanting
- Vegetables, herbs, flowers, and leafy greens
- Indoor growing, greenhouse use, and classroom education
- Market garden and small farm propagation
Product Specifications
- Cells per Tray: 128
- Cell Size: 1 inch per cell
- Drain Hole Size: 0.314 inch
- Tray Size: Standard 10×20
- Material: Polystyrene (PS) Plastic
- Pack Size: 10 trays per purchase
- Total Plant Capacity: 1,280 starts
Care & Use Notes
CRITICAL - Heat Sensitivity: Polystyrene cannot tolerate heat. Hand-wash with cool water only—no hot water, no dishwasher, no steam, no heat mats underneath. Heat exposure will warp or damage trays.
Between uses: Rinse thoroughly, allow to dry completely before storage.
Storage: Keep out of direct sunlight when not in use to extend tray lifespan.
Best use: Seed-starting mixes or appropriate propagation media.
Durability: These trays are reusable with proper care and handling. They're not as heavy-duty as premium options like Bootstrap Farmer plug trays, but they offer good value for budget-conscious growers who handle them carefully.
Important Product Information
- These are NOT Bootstrap Farmer brand trays
- Material is polystyrene (PS) plastic, not polypropylene (PP)
- Cannot withstand heat—cool water cleaning only
- Budget-friendly alternative to premium plug trays
1,280 plant starts in a compact, organized system—efficient seed starting without the premium price.



