Use our Herb Culture Comparison Chart to plan your production season: review specs by crop, days to germination, days to maturity; sowing time, seeding method, light preferences, plant height, plant spacing, and hardiness zones. Data are included for a diverse selection of Johnny's herb crops.
Use this downloadable, printable, full-color PDF to compare key distinguishing features of Johnny's standard cabbage types and varieties.
A technical specification comparison, with charts and spectrum output graphs, of the Sunblaster T5HO to the Sunblaster LED grow lights.
How Johnny's research team conducted a microgreens yield and seeding density trial, with links to our trial results charts and data collection templates.
A PDF version of our Wheel Hoe Selection Guide, with tips, features, and a comparison chart of wheel hoe models and attachments for contrasting and comparing different Glaser and Terrateck Wheel Hoe components, functionality, and compatibilities.
An overview with comparison chart of 10 different hydroponic grow media types, plus recommendations for flushing, sterilization, and related maintenance.
Visit our library of farming method, tool, accessory, and supply-specific information for assembly and instruction manuals, parts and cost calculators, comparison charts, guides and articles — an extensive set of resources made available by the Tool Research, Design, Development & Trialing Team at Johnny's Selected Seeds.
Download a full-color, print-friendly, PDF version of our Hydroponic & Container Basil Guide. This brochure prints on 4 single-sided sheets of 8.5x11" paper, or on two, double-sided sheets. Refer to our accompanying Hydroponic & Container Basil Comparison Chart for more information.
Expert guidance on how to grow, harvest, and market premium-quality cut flowers from our research team and leading experts in floriculture. Technical flower production guides, flower variety comparison charts, and articles on key trends in the slow flowers and cool flowers movements.
Technical instructions and guides to help you grow, harvest, and market fragrant, premium-quality herbs from Johnny's Research & Development Team. Resources include comparison charts, recommendations on identification and management of pests and diseases, articles and webinars on the business aspects of herb production. Refer to our tech sheets for details concerning all our main herb seeds and plants, including American ginseng, basil, goldenseal, and lemongrass.
We explain the difference between short, intermediate, and long day onions. Use our map to check your latitude and choose the best onion type for your location.
Learn why not all pea seed is created equal by reading the Story of 'Sugar Ann' Snap Pea at Johnny's Selected Seeds. Not only are there differences between pea varieties, even seed lots of the same pea variety can vary widely in quality, depending on how the seed crop is grown and managed. To achieve uniformity, or purity, of the seed lot, one must start with a high-quality, uniform batch of seeds — or, as we say in the seed industry, "stock seeds" — to grow the seed crop to a workable size. And, one must also maintain this quality over time. Here's how we do it...