# Best Seed Starting Trays

Source: https://balconygardenpicks.com/best/best-seed-starting-trays
Updated: 2026-09-15
Publisher: Balcony Garden Picks. Our score is an editorial rating out of 10 (fit 35%, features 25%, build 20%, value 20%), not a customer rating. Method: https://balconygardenpicks.com/how-we-research#our-score

Seed starting trays let you raise a whole flat of seedlings on a windowsill or a small table, then move the strongest ones out to your balcony pots when the weather turns. Starting from seed is far cheaper than buying plants, and it opens up varieties you will never find at a garden center.

For tight spaces, look at cell count and footprint so the tray fits your sill, and check whether it includes a drip tray and a clear humidity dome. Sturdier reusable trays outlast the flimsy ones that crack after a season, and clear domes speed up germination on a cool indoor ledge.

## Picks

### 1. Gardzen 5-Set Seed Starter Tray Kits with Vented Domes (200 Cells)

Our score: 8.4/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 7/10 · Value 9/10)

Gardzen's 5-Set seed starter tray kits with vented domes and 200 cells for starting large batches indoors.

Pros:
- Vented Domes let you adjust humidity as seedlings emerge
- 200 Cells cover a whole balcony's worth of vegetables and flowers
- 5-Set of trays keeps crops organized by type or sowing date

Cons:
- Small cells mean seedlings need potting up fairly quickly
- Lightweight trays flex when lifted full, so carry them with a flat base

Details: https://balconygardenpicks.com/product/B07R9S38VX

### 2. MIXC 10 Packs Seed Starter Tray Kit with Humidity Dome (120 Cells)

Our score: 8.2/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 6/10 · Value 9/10)

MIXC's 10 Packs seed starter tray kit with humidity domes and 120 cells for starting many seedlings.

Pros:
- Humidity Dome keeps seeds moist during germination
- 120 Cells total give room for a full season of seedlings
- 10 Packs let you separate crops by tray, so labeling stays simple

Cons:
- Small cells need transplanting sooner as seedlings grow
- Thin plastic trays may not last many seasons

Details: https://balconygardenpicks.com/product/B07L41H13T

### 3. POROLIR Seed Starter Tray 10PCS Kit with Heightened Lids (12 Cells/Tray)

Our score: 8.2/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 7/10 · Value 8/10)

POROLIR's 10PCS seed starter tray kit with heightened lids and 12 cells per tray for taller seedlings.

Pros:
- Heightened Lids leave headroom for seedlings to grow under cover
- 10PCS kit gives lots of trays for staggered sowing
- 12 cells per tray allow sturdy, well-rooted transplants

Cons:
- Tall lids make the trays bulkier to store off-season
- Check whether soil or labels are included in the kit

Details: https://balconygardenpicks.com/product/B0CXJ3KC8Y

### 4. Bonviee 5-Pack Seed Starter Tray with Full-Spectrum LED Plant Light

Our score: 8.2/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 7/10 · Value 8/10)

Bonviee's 5-Pack seed starter tray set with a full-spectrum LED plant light for all-in-one indoor starting.

Pros:
- Full-Spectrum LED Plant Light is included, so no separate lamp is needed
- Complete setup helps prevent leggy seedlings in dim rooms
- 5-Pack of trays pairs neatly with the included light

Cons:
- Bundled light covers only a limited area of trays
- Costs more than trays alone if you already own a grow light

Details: https://balconygardenpicks.com/product/B08PFW3469

### 5. 10-Pack Seed Starter Kit, 72 Cell Seedling Tray Nursery Pots Mini Propagator

Our score: 7.8/10 (Fit for the job 8/10 · Features and specs 8/10 · Build and materials 6/10 · Value 9/10)

A 10-Pack seed starter kit with 72 cell seedling trays, a mini propagator setup for mass sowing.

Pros:
- 72 Cell trays maximize the number of seedlings per shelf
- 10-Pack gives plenty of trays for flowers, herbs and vegetables
- Mini propagator format suits small herbs and lettuce starts

Cons:
- Tiny cells dry out fast and need close attention
- Budget plastic trays are often usable for only a season or two

Details: https://balconygardenpicks.com/product/B07PM7VKFX

### 6. Bonviee 5-Pack Seed Starter Tray Seedling Kits with Humidity Dome (12 Cells/Tray)

Our score: 7.6/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 7/10 · Value 8/10)

Bonviee's 5-Pack seed starter tray seedling kits with humidity domes and 12 cells per tray for bigger starts.

Pros:
- 12 Cells/Tray gives each seedling generous root room before transplant
- Humidity Dome holds moisture for faster, more even germination
- Larger cells suit tomatoes, squash and peppers started indoors

Cons:
- Fewer cells per tray means fewer seedlings per shelf
- Domes can trap too much moisture without regular venting

Details: https://balconygardenpicks.com/product/B086X2Z8P8

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