Seedlings growing in cell flats.

Seed Starting Supplies

243 Products
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200 small plain holes (not countersunk), size C.
50 small plain holes (not countersunk), size C.
50 large plain holes (not countersunk), size E.
36 small plain holes (not countersunk), size C.
200 large plain holes (not countersunk), size E.
128 large plain holes (not countersunk), size E.
36 large plain holes (not countersunk), size E.
Add on to your strip lights for more growing space.
Create square indents for potting-up mini blocks.
These wide-mesh bottom trays are ideal for soil block propagation.
Must-have for consistent temperature control with heat mats.
Expand your lighting to grow bigger, healthier plants.
Use with soil blockers to create dibbled holes for smaller seeds.
Our favorite for making perfect soil blocks.
Quickly adjust the height of lighting as plants grow.
These wide-mesh bottom trays are ideal for soil block propagation.
Use with soil blockers to create dibbled holes for seeds or cuttings.
Keeps all your essential potting items conveniently at arm's reach.
Design your own custom seedling growing space.
Create the perfect tabletop growing environment.
Locks two Johnny's Modular LED Grow Light Carts together.
Humidity dome with groove for resting a grow light.