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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244 Products

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Johnny's Commercial Heat Mat – Add-On Seedling Heat Mats

Johnny's Commercial Heat Mat – Add-On

Fort Light Potting Mix – 20 Qt Growing Media

Fort Light Potting Mix – 20 Qt

A nutrient-rich organic mix for starting vegetables and annuals from seed.

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

Polypro 5x5 Insert Pots – Black, 24 Count

Resilient and reusable.

5x5 Inserts – 5 Count Microgreens Supplies

5x5 Inserts – 5 Count

Microgreens Accessory

Ideal for small microgreen plantings.

Standard Dibbles Soil Blocking

Standard Dibbles

Soil Blocker Accessory

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

Pro-Tray 38 Cell Flats – 5 Count Cell Flats

Pro-Tray 38 Cell Flats – 5 Count

For home and market gardeners. Round cells.

Polypro 2.5" Insert Pots – Blue, 32 Count Plastic Pots

Polypro 2.5" Insert Pots – Blue, 32 Count

Resilient and reusable.

Pro-Tray 24 Cell Flats – 5 Count Cell Flats

Pro-Tray 24 Cell Flats – 5 Count

For home and market gardeners. Round cells.

1-Cell Handheld Soil Blocker Soil Blocking

1-Cell Handheld Soil Blocker

Create soil blocks for seeding and transplanting.

Johnny's 12-Cell Handheld Soil Blocker Soil Blocking

Johnny's 12-Cell Handheld Soil Blocker

Reduce your workload and improve your efficiency.

Smart Pot® – 10 Gal. Grow Bags

Smart Pot® – 10 Gal.

Fabric planters promote healthy roots.

Link Cord – 24" Grow Lights and Carts

Link Cord – 24"

LED or T5HO Strip Light Accessory

Add on to your strip lights for more growing space.

Fort Light Potting Mix – 45 Qt Growing Media

Fort Light Potting Mix – 45 Qt

A nutrient-rich organic mix for starting vegetables and annuals from seed.

Polypro 5x5 Insert Pots – Blue, 8 Count Plastic Pots

Polypro 5x5 Insert Pots – Blue, 8 Count

Resilient and reusable.

Polypro 5x5 Insert Pots – Black, 8 Count Plastic Pots

Polypro 5x5 Insert Pots – Black, 8 Count

Resilient and reusable.

NanoDome – Single Grow Lights and Carts

NanoDome – Single

LED or T5HO Strip Light Accessory

Humidity dome with groove for resting a grow light.

2 1/3" Round Fertil Pots – 160 Count Biodegradable Pots

2 1/3" Round Fertil Pots – 160 Count

100% organic, OMRI Listed® biodegradable pots.

Lightweight Shallow Trays (with Holes) – 5 Count Support Trays

Lightweight Shallow Trays (with Holes) – 5 Count

Slots for uniform drainage.