Seed Starting Supplies | Johnny's Selected Seeds

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Johnny's offers all the seed-starting and propagation supplies you need to grow your own professional-quality seedlings with efficiency. Growing your own transplants from seed provides greater control over the growing season, from start to finish, by allowing you to choose your favorite varieties, select specific planting and transplanting dates, and produce the quantities of plants you need.

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246 Products

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Seed Plate B36 Seed Starting Supplies

Seed Plate B36

Precision Vacuum Seeder Accessory

36 medium plain holes (not countersunk), size B.

Seed Plate E72 Seed Starting Supplies

Seed Plate E72

Precision Vacuum Seeder Accessory

72 large plain holes (not countersunk), size E.

Seed Plate E288 Seed Starting Supplies

Seed Plate E288

Precision Vacuum Seeder Accessory

288 large plain holes (not countersunk), size E.

Seed Plate E36 Seed Starting Supplies

Seed Plate E36

Precision Vacuum Seeder Accessory

36 large plain holes (not countersunk), size E.

Seed Plate B288 Seed Starting Supplies

Seed Plate B288

Precision Vacuum Seeder Accessory

288 medium plain holes (not countersunk), size B.

Seed Plate E128 Seed Starting Supplies

Seed Plate E128

Precision Vacuum Seeder Accessory

128 large plain holes (not countersunk), size E.

Seed Plate D36 Seed Starting Supplies

Seed Plate D36

Precision Vacuum Seeder Accessory

36 medium countersunk holes, size D.

Seed Plate B128 Seed Starting Supplies

Seed Plate B128

Precision Vacuum Seeder Accessory

128 medium plain holes (not countersunk), size B.

Seed Plate E50 Seed Starting Supplies

Seed Plate E50

Precision Vacuum Seeder Accessory

50 large plain holes (not countersunk), size E.

Snap-in Square Dibbles Soil Blocking

Snap-in Square Dibbles

Soil Blocker Accessory

Create square indents for potting-up mini blocks.

Skimming Trowel Soil Blocking

Skimming Trowel

Soil Blocker Accessory

Easily level soil in Soil Blocker grids.

Standard Dibbles Soil Blocking

Standard Dibbles

Soil Blocker Accessory

Use with soil blockers to create dibbled holes for smaller seeds.

Soil Block Propagation Trays – 5 Count Trays, Domes, and Flats

Soil Block Propagation Trays – 5 Count

These wide-mesh bottom trays are ideal for soil block propagation.

Soil Blocking and Potting Tray Soil Blocking

Soil Blocking and Potting Tray

Our favorite for making perfect soil blocks.

Tray Shelf Soil Blocking

Tray Shelf

Keeps all your essential potting items conveniently at arm's reach.

Heat Mat Temperature Controller Seedling Heat Mats

Heat Mat Temperature Controller

Johnny's Heat Mat Accessory

Must-have for consistent temperature control with heat mats.

Grafting Support Stakes Grafting Supplies

Grafting Support Stakes

Top-Grafting Clips with Channel Accessory

Secure plants in place for proper graft healing.

8 and 16-Tray Light Cart Replacement LED Tube – 48", 1 Count LED

8 and 16-Tray Light Cart Replacement LED Tube – 48", 1 Count

Replacement tube for #6221 and #6248 light carts.