Answering the search for large plastic grow trays, this guide highlights sturdy options suited for seed starting, microgreens, hydroponics, and indoor gardens. Best for hobbyists seeking reusable trays, commercial growers needing bulk options, and anyone aiming to keep soil contained with easy cleanup. The top picks below come from brands with practical designs, no-drain-hole bases for moisture control, and sizes that fit common indoor growing setups. A quick summary table follows to help compare core specs at a glance.
| Product | Size (approx) | Drain Holes | Best For |
|---|---|---|---|
| Living Whole Foods 10 Tray Set | 21″ x 11″ | No | Seed starting and drip tray use |
| Mr. Pen 5 Pack Trays | 17″ x 10″ | No | Cost-effective seedling starts |
| Living Whole Foods 5 Pack | 21″ x 11″ | No | Smaller batches and space-saving |
| Gardzen 10 Pack Trays | 17.3″ x 13″ | No | Seed starting and microgreens |
| Yield Lab 10×20 Inch Trays | 21″ x 11″ | No | Microgreens and propagation |
Each option emphasizes durability, size compatibility with common humidity domes and mats, and the ability to reuse for multiple growing cycles. Use the Buying Guide below to decide which tray set best matches your growing space, whether you’re starting seeds indoors, growing microgreens, or managing hydroponic systems.
10 Plant Growing Trays (No Drain Holes) — 21 by 11 Inches
Best for bulk seedling operations and hydroponic drip tray setups. This Living Whole Foods set includes ten sturdy trays with no drainage holes, making them ideal for containing soil and water while using a separate reservoir or drip system. The top edge measures around 21″ by 11″, with a bottom measurement near 20″ by 10″. This configuration supports a range of seed-starting tasks, from vegetables to herbs, and is particularly suitable for growers who want a simple, reusable base tray.
Who this is best for: home gardeners scaling up seed-starting or microgreens production, classroom projects, and small nurseries needing reliable, reusable trays. Why selected: the ten-pack provides cost-per-tray advantages and reduces setup time for busy gardeners. Caution: no drainage holes means you must manage moisture with an external reservoir or dripper system to avoid overwatering on benches or shelves.
Mr. Pen Plastic Growing Trays — 5 Pack
Best for budget-minded growers who want a durable, reusable option for seedlings and microgreens. The 5-pack of seed trays is built from sturdy plastic and is lightweight for easy handling. These trays help keep soil, fertilizer, and water contained, reducing mess and simplifying maintenance. The dimensions are 17″ by 10″ with a height of about 2.4″.
Who this is best for: beginners starting a home garden, educators running small classes, and gardeners expanding indoor growing space without a large upfront investment. Why selected: a balanced blend of cost, durability, and ease of cleaning. Caution: non-drain holes require careful moisture management to avoid pooling water in the tray bottoms.
Living Whole Foods 5 Pack — No-Drain Trays
Best for compact setups where several trays are needed but space is limited. This five-pack mirrors the no-drain-hole design, suitable as drip trays or for hydroponic growing and seed starting. Approximately 21″ by 11″ at the top with a slightly narrower bottom helps fit standard racks and benches used in indoor gardens.
Who this is best for: small-scale indoor gardeners, urban growers, and those who want modular trays to fit tight spaces. Why selected: dependable durability and consistent sizing across multiple trays. Caution: available quantity is lower than some bulk options, which may affect large-scale projects.
Gardzen 10 Pack Seed Trays — No Drain Holes
Best for versatile seed-starting and microgreens projects with practical storage and reuse. Gardzen trays come in a 10-pack and include handy extras like a dibber and widger. The outer dimensions approximate 17.3″ by 13″ with a 2.3″ depth. They are designed to be stackable, space-saving, and compatible with a home greenhouse or indoor growing setup.
Who this is best for: growers seeking value in bulk with included plant-care tools and a compact footprint. Why selected: the stackable design enhances storage efficiency, and no-drain-hole construction suits soil-contained setups. Caution: the PS material is recyclable but may require careful cleaning to avoid residue transfer between uses.
Yield Lab 10×20 Inch Trays — No Drain Holes
Best for a robust, long-lasting base tray that supports hydroponics, microgreens, and seedling propagation. This 10-pack emphasizes a solid, durable base and a size compatible with standard humidity domes and mats. The design emphasizes a reliable container for healthy germination and early growth in both indoor and greenhouse settings.
Who this is best for: growers who value reliability and compatibility with existing equipment like domes and mats. Why selected: the emphasis on a solid base and long-term reuse helps reduce ongoing tray replacement. Caution: designed for heavier use; ensure supported shelving or stands to maintain level surfaces.
BTPLASTIK 10-Pack Heavy-Duty 1020 Trays
Best for longevity and heavy-use environments. These 1020 seed trays are extra thick PS plastic designed to resist bending under weight, with a claimed capacity to hold up to 40 lbs. They’re a universal fit for standard humidity domes and mats and are designed to maintain a clean, water-safe surface for indoor gardening.
Who this is best for: commercial hobbyists, community gardens, and multi-bench setups where trays endure frequent reuse. Why selected: superior rigidity helps prevent warping and spills. Caution: true-to-size compatibility should be verified with existing domes and inserts to avoid fit issues.
RooTrimmer Heavy Duty Seed Starter Trays — 3-Pack
Best for comprehensive seed starting kits with tall humidity domes and deeper cells. Each tray features 54 cells and 2.75″ deep pockets, plus a clear 5″ tall dome for controlled warmth and humidity. The kit includes three trays and three domes for year-round propagation efforts.
Who this is best for: gardeners who want a complete seed-starting solution in one purchase. Why selected: deeper cells support robust root systems; tall domes reduce temperature fluctuations. Caution: deeper cells require more soil per cell, which can raise initial soil costs for large batches.
VUWEZ Plant Saucer Growing Trays — 14″ x 11″
Best for plant saucers and indoor propagation with a classic rectangular profile. This set includes one or more thickened trays designed to act as drainage saucers for planters or seedling stations. Outer dimensions are around 14.5″ by 11″, with a height of about 1.4″, suitable for pots and smaller propagation setups.
Who this is best for: indoor gardeners needing stable saucers to catch overflow water, or for use under trays in stacked configurations. Why selected: durable PP material and water resistance make these trays dependable for long-term use. Caution: single-pack availability means planning for multiple stations may be necessary for larger setups.
Buying Guide: Key Purchase Considerations
- Size and fit: Measure your growing area, humidity domes, and any shelving or racks to ensure the tray dimensions align with your setup.
- No-drain design: If you use external reservoirs or plan to keep water contained, no-drain-hole trays simplify cleanup but require moisture management strategies.
- Durability: For frequent re-use, prioritize thicker PS or PP trays that resist bending and cracking under weight and moisture over time.
- Stackability and storage: If you have limited space, choose trays that stack neatly without wedging extra height or causing warping.
- Included accessories: Some sets include domes, dibbers, or widgers—these add value and help with seed propagation workflows.
- Compatibility: Verify compatibility with existing domes, heating mats, and seedling inserts to avoid mismatch and wasted equipment.
Practical Buying Questions
- What size trays work best for seed starting in a small apartment? Aim for trays around 17″–21″ long with 10″–13″ width to fit standard shelves and light stands.
- Are no-drain-hole trays better for hydroponics? They can be convenient when paired with external reservoirs, but you must manage moisture carefully to avoid oversaturation.
- Should I buy in bulk or mix tray brands? Bulk trays reduce per-tray cost and simplify inventory, while mixing brands can tailor features to different crops or setups.
- What about durability for long-term use? Look for trays advertised as heavy-duty or thick-walled and check compatibility with your load and cleaning routines.
- Do trays affect root health? Deep cells (around 2.5″–2.75″) support stronger root systems for many vegetables and herbs during germination.
- How do I clean and sanitize reused trays? Rinse thoroughly, use mild soap, and allow complete drying between cycles to prevent residue buildup and mold.
FAQ
- Do these trays fit standard humidity domes? Most listed trays are designed to be compatible with common 5″ to 6″ tall domes and standard mats, but double-check measurements before buying.
- Are these trays dishwasher safe? Cleaning methods vary by material; hand washing with mild detergent is commonly recommended to preserve tray integrity and color.
- Can I use these trays outdoors? Yes, many trays are suitable for indoor and sheltered outdoor use, but direct exposure to harsh weather may reduce their lifespan.
- What crops best suit no-drain-hole trays? Microgreens, herbs, and seed-starting for vegetables typically benefit from moisture control without drainage holes.
- Which tray is best for beginners? A balanced option is the Gardzen 10 Pack or Yield Lab 10×20 Inch Trays, offering bulk value with reliable sizing for new growers.