Seed Starting Supplies | Johnny's Selected Seeds

Skip to main content Skip to footer content

0

View Cart

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.

Satisfaction Guarantee

251 Products

Sort By:

128 Cell Plug Flats – 5 Count Cell Flats

128 Cell Plug Flats – 5 Count

Designed for fresh market growers. Square cells.

Smart Pot® – 15 Gal. Grow Bags

Smart Pot® – 15 Gal.

Fabric planters promote healthy roots.

Smart Pot® – 7 Gal. Grow Bags

Smart Pot® – 7 Gal.

Fabric planters promote healthy roots.

20 Cell Fertil Pots Strip – 10 Count Biodegradable Pots

20 Cell Fertil Pots Strip – 10 Count

100% organic, OMRI Listed® biodegradable pots.

Strip Light Hanger Grow Lights and Carts

Strip Light Hanger

LED or T5HO Strip Light Accessory

Expand your lighting to grow bigger, healthier plants.

20-Row Seed Flats – 5 Count Cell Flats

20-Row Seed Flats – 5 Count

Ideal for seed starting.

LED Strip Light Kit – 36" Grow Lights and Carts

LED Strip Light Kit – 36"

Energy efficient LED lighting for growing quality plants.

Smart Pot® – 5 Gal. Grow Bags

Smart Pot® – 5 Gal.

Fabric planters promote healthy roots.

Jumbo Square Plastic Pots – 8 Count Plastic Pots

Jumbo Square Plastic Pots – 8 Count

For very large seedlings such as squash and pumpkins.

Bioset Germinator Kit Seed Starting Supplies

Bioset Germinator Kit

Experience a wide range of flavors.

Lightweight Shallow Trays – 5 Count Support Trays

Lightweight Shallow Trays – 5 Count

A great multi-use tray for any operation.

12 Cell Fertil Pots Strip – 8 Count Biodegradable Pots

12 Cell Fertil Pots Strip – 8 Count

100% organic, OMRI Listed® biodegradable pots.

Soil Blocking and Potting Tray Soil Blocking

Soil Blocking and Potting Tray

Our favorite for making perfect soil blocks.

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

Polypro 2.5" Insert Pots – Red, 32 Count

Resilient and reusable.

Bioset Germinator Seed Starting Supplies

Bioset Germinator

Grow fresh sprouts for salads right in your kitchen.

Top-Grafting Clips with Channel – 2.8 mm Grafting Supplies

Top-Grafting Clips with Channel – 2.8 mm

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

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

Polypro 5x5 Insert Pots – Black, 8 Count

Resilient and reusable.

Basic Microgreens Seed Starter Kit Microgreens Supplies

Basic Microgreens Seed Starter Kit

Grow microgreens indoors year-round.

Mini Square Plastic Pots – 18 Count Plastic Pots

Mini Square Plastic Pots – 18 Count

For big, stocky transplants.

6-Cell Tray Inserts – 24 Count Cell Flats

6-Cell Tray Inserts – 24 Count

Reusable inserts for 1020 trays.

Medium Weight Mesh Tray – 5 Count Support Trays

Medium Weight Mesh Tray – 5 Count

Reinforced support for other seedling containers.

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

2 1/3" Round Fertil Pots – 160 Count

100% organic, OMRI Listed® biodegradable pots.

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.

Johnny's 12-Cell Handheld Soil Blocker Soil Blocking

Johnny's 12-Cell Handheld Soil Blocker

Reduce your workload and improve your efficiency.

Big Bag Bed – Jr. Raised Beds & Planters

Big Bag Bed – Jr.

Instant raised beds for growing healthy plants.

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

Polypro 2.5" Insert Pots – Black, 32 Count

Resilient and reusable.

Polypro Shallow Tray (With Holes), Multi – 6 Count Support Trays

Polypro Shallow Tray (With Holes), Multi – 6 Count

Solid shallow trays with holes (for drainage).

Johnny's Commercial LED Light Cart – 16 Trays LED

Johnny's Commercial LED Light Cart – 16 Trays

Designed for commercial grower applications.

Heat Mat Temperature Controller Seedling Heat Mats

Heat Mat Temperature Controller

Johnny's Heat Mat Accessory

Must-have for consistent temperature control with heat mats.

NanoDome – Single Grow Lights and Carts

NanoDome – Single

LED or T5HO Strip Light Accessory

Humidity dome with groove for resting a grow light.

Polypro Shallow Tray (No Holes), Black – 4 Count Support Trays

Polypro Shallow Tray (No Holes), Black – 4 Count

Solid trays without holes (for bottom watering and support).

2" Clear Acrylic Domes – 50 Count Humidity Domes

2" Clear Acrylic Domes – 50 Count

Holds moisture and warmth for germination.

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

Lightweight Shallow Trays (with Holes) – 5 Count

Slots for uniform drainage.

128 Cell Plug Flats – 50 Count Cell Flats

128 Cell Plug Flats – 50 Count

Designed for fresh market growers. Square cells.

Johnny's 72-Cell Commercial Soil Blocker Soil Blocking

Johnny's 72-Cell Commercial Soil Blocker

The new standard in commercial-scale soil blocking.

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.