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

Watch the full video of our webinar, including Q&A, on Flower Seed Starting Fundamentals.

Use this calculator to ascertain when to start seeds indoors and then to transplant outside, based on the frost-free date in your area.

Starting your own seeds is a great way to extend the growing season, grow a wider selection of varieties, and save money. Here are some guidelines and troubleshooting advice for growers who are starting seeds indoors, from the Research & Trialing team at Johnny's.

Get an early start to your growing season with Johnny's soil-block makers. You can easily make your own seed-starting blocks with our soil-block-making tools and a bag of germination soil mix. Soil-blocked seedlings reestablish themselves more quickly, with less transplant shock. Soil blocks also eliminate the expense, waste, and storage issues of plastic pots, and their negative impact on the environment.

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.

A slide deck recap of takeaways from our Flower Seed Starting Fundamentals webinar.

This tech sheet describes the basic steps of seed-starting in hydroponic systems and introduces the primary variables that affect plant health and productivity in hydroponic systems. Information presented includes steps for seed-starting in hydroponic systems; primary environmental specifications of hydroponically grown crops; and recommended further reading.

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.

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.

How to calculate your seeding and transplanting dates for overwintering flowers in an unheated high tunnel.

Learn the basics of successful melon growing, with information on diverse netted, or "winter" melon types, from the Johnny's melon research and trialing team. Includes information on melon seed-starting, transplanting melon, melon culture, important type- and variety-specific harvest indicators, as well as best storage conditions and shelf life of Charentais, canary, cantaloupe (muskmelon), Crenshaw, galia (tropical), honeydew, Piel de Sapo, and Asian melon types.