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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243 Products

Johnny's 512 Mix – 2-Yard Bulk (bagged) Growing Media

Johnny's 512 Mix – 2-Yard Bulk (bagged)

Top-Grafting Starter Kit Seed Starting Supplies

Top-Grafting Starter Kit

Save money growing your own quality grafted seedlings.

12-Cell Stand-up Soil Blocker Soil Blocking

12-Cell Stand-up Soil Blocker

Create soil blocks for seeding and transplanting.

Smart Pot® – 20 Gal. Grow Bags

Smart Pot® – 20 Gal.

Fabric planters promote healthy roots.

5x5 Inserts – 100 Count Microgreens Supplies

5x5 Inserts – 100 Count

Microgreens Accessory

Ideal for small microgreen plantings.

Bioset Germinator Kit Seed Starting Supplies

Bioset Germinator Kit

Experience a wide range of flavors.

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

Johnny's Commercial Heat Mat – Add-On

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.

Mini Wand Seeder with Air Valve and Hose Seed Starting Supplies

Mini Wand Seeder with Air Valve and Hose

One of the best seeders for handling extremely small seeds.

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.

Johnny's Seedling Heat Mat – 20.75" x 20.75" Seedling Heat Mats

Johnny's Seedling Heat Mat – 20.75" x 20.75"

Improved germination for heat-loving crops.

Jumbo Square Plastic Pots – 200 Count Plastic Pots

Jumbo Square Plastic Pots – 200 Count

For very large seedlings such as squash and pumpkins.

Polypro Mesh Deep Tray, Black – 4 Count Support Trays

Polypro Mesh Deep Tray, Black – 4 Count

Durable trays for support and drainage.

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

Polypro 5x5 Insert Pots – Red, 8 Count

Resilient and reusable.

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 – 100 Count Cell Flats

Pro-Tray 24 Cell Flats – 100 Count

For home and market gardeners. Round cells.

LED Strip Light Kit – 36" Grow Lights and Carts

LED Strip Light Kit – 36"

Energy efficient LED lighting for growing quality plants.

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

Polypro 5x5 Insert Pots – Red, 24 Count

Resilient and reusable.