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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243 Products

35-Cell Stand-up Soil Blocker Soil Blocking

35-Cell Stand-up Soil Blocker

Create soil blocks for seeding and transplanting.

Lightweight Deep Trays – 100 Count Support Trays

Lightweight Deep Trays – 100 Count

The standard 1020 greenhouse flat without drainage slots.

6-Cell Stand-up Soil Blocker Soil Blocking

6-Cell Stand-up Soil Blocker

Create soil blocks for seeding and transplanting.

72 Cell Plug Flats – 100 Count Cell Flats

72 Cell Plug Flats – 100 Count

Designed for fresh market growers. Square cells.

Jumbo Plug Inserts – 100 Count Cell Flats

Jumbo Plug Inserts – 100 Count

Large cells can be separated into six-packs.

Mini Square Plastic Pots – 540 Count Plastic Pots

Mini Square Plastic Pots – 540 Count

For big stocky transplants.

50 Cell Plug Flats – 100 Count Cell Flats

50 Cell Plug Flats – 100 Count

Designed for fresh market growers. Square cells.

12 Cell Fertil Pots Strip – 8 Count Biodegradable Pots

12 Cell Fertil Pots Strip – 8 Count

100% organic, OMRI Listed® biodegradable pots.

Lightweight Deep Trays (with Holes) – 100 Count Support Trays

Lightweight Deep Trays (with Holes) – 100 Count

The standard 1020 greenhouse flat with drainage slots.

18 Cell Fertil Pots Strip – 10 Count Biodegradable Pots

18 Cell Fertil Pots Strip – 10 Count

100% organic, OMRI Listed® biodegradable pots.

200 Cell Plug Flats – 50 Count Cell Flats

200 Cell Plug Flats – 50 Count

Designed for fresh market growers. Square cells.

7" Clear Propagation Domes – 25 Count Humidity Domes

7" Clear Propagation Domes – 25 Count

Create the perfect healing chamber for grafted tomatoes.

SunBlaster LED Strip Light Kit – 36" Grow Lights and Carts

SunBlaster LED Strip Light Kit – 36"

Energy efficient LED lighting for growing quality plants.

Polypro Endurance Deep Tray (No Holes), Blue – 24 Count Support Trays

Polypro Endurance Deep Tray (No Holes), Blue – 24 Count

Johnny's thickest wall trays.

Medium Weight Mesh Tray – 50 Count Support Trays

Medium Weight Mesh Tray – 50 Count

Reinforced support for other seedling containers.

Polypro Endurance Deep Tray (No Holes), Red – 24 Count Support Trays

Polypro Endurance Deep Tray (No Holes), Red – 24 Count

Johnny's thickest wall trays.

Polypro 5x5 Insert Pots – Red, 24 Count Plastic Pots

Polypro 5x5 Insert Pots – Red, 24 Count

Resilient and reusable.

Polypro Shallow Tray (With Holes), Black – 24 Count Support Trays

Polypro Shallow Tray (With Holes), Black – 24 Count

Solid shallow trays with holes (for drainage).