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.
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Heat Mat Temperature Controller
Johnny's Heat Mat Accessory
Must-have for consistent temperature control with heat mats.
Strip Light Hanger
LED or T5HO Strip Light Accessory
Expand your lighting to grow bigger, healthier plants.
Power Cord with On/Off Switch
LED or T5HO Strip Light Accessory
Design your own custom seedling growing space.
Grafting Support Stakes
Top-Grafting Clips with Channel Accessory
Secure plants in place for proper graft healing.
Paperpot Seedling Tray – Individual
Paperpot Transplanter Accessory
Tray sized specifically for Paper Chain Pots.
Hang It Adjustable Hanger
LED or T5HO Strip Light Accessory
Quickly adjust the height of lighting as plants grow.
Strip Light Stand
LED or T5HO Strip Light Accessory
Create the perfect tabletop growing environment.
Hanging Clips
LED or T5HO Strip Light Accessory
Ideal for suspending SunBlaster lighting above your growing area.
Soil Block Propagation Trays – 50 Count
These wide-mesh bottom trays are ideal for soil block propagation.
