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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247 Products

Light Timer Grow Lights and Carts

Light Timer

Precise lighting control for your indoor growing space.

Pro-Tray 38 Cell Flats – 5 Count Cell Flats

Pro-Tray 38 Cell Flats – 5 Count

For home and market gardeners. Round cells.

Terrafibre Hemp Grow Mats, 10" x 20" – 10 Count Microgreens Supplies

Terrafibre Hemp Grow Mats, 10" x 20" – 10 Count

Microgreens Accessory

Microgreens media made from a renewable resource.

Smart Pot® – 20 Gal. Grow Bags

Smart Pot® – 20 Gal.

Fabric planters promote healthy roots.

Pro-Tray 24 Cell Flats – 5 Count Cell Flats

Pro-Tray 24 Cell Flats – 5 Count

For home and market gardeners. Round cells.

Medium Weight Mesh Tray – 5 Count Support Trays

Medium Weight Mesh Tray – 5 Count

Reinforced support for other seedling containers.

18 Cell Fertil Pots Strip – 10 Count Biodegradable Pots

18 Cell Fertil Pots Strip – 10 Count

100% organic, OMRI Listed® biodegradable pots.

Pro-Tray 72 Cell Flats – 5 Count Cell Flats

Pro-Tray 72 Cell Flats – 5 Count

For home and market gardeners. Round cells.

Top-Grafting Clips with Channel – 1.5 mm Grafting Supplies

Top-Grafting Clips with Channel – 1.5 mm

Protect and support newly grafted plant stems to aid in healing.

5x5 Inserts – 5 Count Microgreens Supplies

5x5 Inserts – 5 Count

Microgreens Accessory

Ideal for small microgreen plantings.

Heavyweight Mesh Tray – 50 Count Support Trays

Heavyweight Mesh Tray – 50 Count

Heavy duty support for other seedling containers.

SureRoots 50-Cell Deep Plug Flats – 5 Count Cell Flats

SureRoots 50-Cell Deep Plug Flats – 5 Count

Promotes deeper root development.

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

Johnny's Commercial Heat Mat – Add-On

Maxi Square Plastic Pots – 540 Count Plastic Pots

Maxi Square Plastic Pots – 540 Count

For larger seedlings like peppers and tomatoes.

Fort Vee All-Purpose Potting Mix – 60 Qt Growing Media

Fort Vee All-Purpose Potting Mix – 60 Qt

A popular mix for the professional grower.

Johnny's Commercial Heat Mat – Master Seedling Heat Mats

Johnny's Commercial Heat Mat – Master

Improved germination for heat-loving crops.

Hand-held 1 Soil Blocker Soil Blocking

Hand-held 1 Soil Blocker

Create soil blocks for seeding and transplanting.

Heavyweight Mesh Tray – 5 Count Support Trays

Heavyweight Mesh Tray – 5 Count

Heavy duty support for other seedling containers.