Q: How is a modular seed starter different from a fixed tray?
This 72 cell seed starter splits into 12 individual six-cell units, so you can move or group seedlings separately instead of handling one fixed 72-cell block.
AA677 - 72-Cell Modular Seed Starter Set with Propagation Tray

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The advantage of this seed starter set lies in the modular design, allowing you to group seedlings in 12 individual six-cell units. You can treat smaller seedlings separately or at different times to align with their distinct growing cycles and lighting requirements. The units come in four colors (equal numbers of purple, blue, green and orange), useful for identifying plant groupings by species.
Each cell has slits in the sides to provide airflow to the roots and improve drainage, helping seedlings to germinate and grow quickly. A 3/8" hole in the bottom of each cell allows watering from below and lets you pop seedlings out for easy transplanting without disturbing the root system or damaging the stem and leaves.
Individual cells measure 1 1/2" square at the top and taper to 1" at the bottom. Made of durable, UV-stable polypropylene plastic, all the units fit comfortably in the included 2mm thick polypropylene tray, which won’t easily twist, warp or break when transporting seedlings for hardening off or transplanting.
All are top rack dishwasher safe.
Made in USA.
This 72 cell seed starter splits into 12 individual six-cell units, so you can move or group seedlings separately instead of handling one fixed 72-cell block.
The units come in equal numbers of purple, blue, green and orange, useful for identifying different plant groupings at a glance.
Yes, it includes a 2 millimeter polypropylene propagation tray that resists twisting and warping.
Yes, it's top-rack dishwasher safe.
| Materials | UV-stable polypropylene plastic |
| Dimensions | Cells 1 1/2" square tapering to 1" at the bottom; tray 2mm thick |
| Includes | Six-cell units; propagation tray |
| Color/Finish | Purple, blue, green or orange (units) |
| Package Quantity | 1 set |
| Country of Origin | USA |
| Warranty | Lee Valley Satisfaction Guarantee |

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72-Cell Modular Seed Starter Set with Propagation Tray
The advantage of this seed starter set lies in the modular design, allowing you to group seedlings in 12 individual six-cell units. You can treat smaller seedlings separately or at different times to align with their distinct growing cycles and lighting requirements. The units come in four colors (equal numbers of purple, blue, green and orange), useful for identifying plant groupings by species.
Each cell has slits in the sides to provide airflow to the roots and improve drainage, helping seedlings to germinate and grow quickly. A 3/8" hole in the bottom of each cell allows watering from below and lets you pop seedlings out for easy transplanting without disturbing the root system or damaging the stem and leaves.
Individual cells measure 1 1/2" square at the top and taper to 1" at the bottom. Made of durable, UV-stable polypropylene plastic, all the units fit comfortably in the included 2mm thick polypropylene tray, which won’t easily twist, warp or break when transporting seedlings for hardening off or transplanting.
All are top rack dishwasher safe.
Made in USA.
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