Seed-Starting & Transplanting

A full-color, downloadable/printable (PDF) version of our Fertil Pots Comparison Chart.

A full-color, downloadable/printable (PDF) version of our Seedling Flats Comparison Chart, including 20-Row Seed Flats; Pro-Tray Cell Flats; Plug Flats; and Jumbo Plug Flats (Six 6-packs).

Use this comparison chart to learn about and choose flats, trays, domes, and pots compatible with your seed-starting and cultural needs, in a range of sizes and materials, Clear Acrylic Domes; Propagation Domes; 20-Row Seed Flats; Pro-Tray Cell Flats; Plug Flats; Jumbo Plug Flats (Six 6-packs); Pots; Mini Square Plastic Pots; Shallow Black Germination Trays; Shallow White Leakproof Trays; Solid Mesh Trays; Fertil Pots; and plastic pots.

Full-color, downloadable/printable (PDF) chart comparing our humidity dome offerings, including Clear Acrylic Domes and Propagation Domes for seed-starting and grafted plant healing chambers.

This article describes the basic steps of seed-starting in hydroponic systems and introduces some of the primary environmental variables that affect plant health and productivity in hydroponic systems.

This chart indicates which Paperpot Drop Seeder or Skip Plate to use for seeding a Paperpot tray with specific vegetable, herb, and flower crops, plus part number, number of holes, hole diameter, in-row spacing, and recommended crops.

This chart indicates which Paper Chain Pots to use for production of vegetable, herb, and flower crops, listing part number, in-row spacing, number of cells per tray, approximate length, and quantity in each unit.

A learning resource page for our webinar, "Flower Seed Starting Fundamentals"

Compare features for our line of durable, reusable Smart Pots, with part numbers, growing medium capacity in cubic meters and gallons, diameter, heights, and suitable crops to grow in each size.

Soil-blocking is an ingenious seed-starting method that allows the grower to produce vigorous seedlings with roots that quickly reestablish growth upon transplanting. Soil-blocking further eliminates the expense, waste, and storage issues associated with plastic pots. Read Eliot Coleman's account of how he came to develop and perfect this system for the small commercial grower.

Use this convenient comparison chart to compare hole dimensions, features, and correct crop applications for each of the interchangeable plates available for your Precision Vacuum Seeder.

Learn how to start professional-quality seedlings using the 3 key indoor seed-starting methods used at Johnny’s Research Farm. This article covers the key seed-starting tools, supplies, and techniques we use for starting seedlings in our greenhouses, including advantages and drawbacks of each type of system: 1) Trays & Cell Flats; 2) Biodegradable Pots; and 3) Soil Blocks created with Soil-Block Makers, developed in partnership with Johnny's Tools Advisor, Eliot Coleman.