Seed Starting Supplies
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.
249 Products
Sort By:
Sort By:
Paperpot Seedling Trays – 10 Count
Paperpot Transplanter Accessory
Tray sized specifically for Paper Chain Pots.
NanoDome – Single
LED or T5HO Strip Light Accessory
Humidity dome with groove for resting a grow light.
NanoDome – 5 Count
LED or T5HO Strip Light Accessory
Humidity dome with groove for resting a grow light.
Soil Block Propagation Trays – 50 Count
These wide-mesh bottom trays are ideal for soil block propagation.
8 and 16-Tray Light Cart Replacement LED Tube – 48", 1 Count
Replacement tube for #6221 and #6248 light carts.
Paperpot Seedling Tray – Individual
Paperpot Transplanter Accessory
Tray sized specifically for Paper Chain Pots.
NanoDome – 25 Count
LED or T5HO Strip Light Accessory
Humidity dome with groove for resting a grow light.
Connector Set
Johnny's Modular LED Grow Light Cart Accessory
Locks two Johnny's Modular LED Grow Light Carts together.
Link Cord – 24"
LED or T5HO Strip Light Accessory
Add on to your strip lights for more growing space.
Link Cord – 14"
LED or T5HO Strip Light Accessory
Add on to your strip lights for more growing space.
Power Supply Adapter
Vibro Hand Seeder Accessory
120 Volt AC power converter for the Vibro Hand Seeder.