Man removing row cover to check on overwintered lettuce.

Good for Overwintering

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Standard salad arugula for salad mix and bunching.
Standard cilantro with robust flavor.
Early, heat-tolerant standard variety.
Early, heat-tolerant standard variety.
Standard salad arugula for salad mix and bunching.
Dark green, compact romaine for an all-season mid-size.
Smooth, green, purple-veined leaves for baby leaf and bunching.
Beautiful, three-dimensional, oak-type leaves add loft to salad mix.
Fast-growing, classic mizuna with mild flavor.
Smooth, green, purple-veined leaves for baby leaf and bunching.
Standard cilantro with robust flavor.
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.
Most basil types and varieties can perform well in container production and/or hydroponic systems, but which ones will perform best for you? With a few facts in hand, you'll be prepared to match your system to the best varieties. Here's help getting your container and/or hydroponic basil production off to a successful start.
Browse our complete selection of hydroponic head lettuce varieties, selected specifically for successful hydroponic production.
An introductory guide to hydroponics production, including basics on types of hydroponic systems; how hydroponics differs from growing in soil; scheduling what to plant hydroponically and when; specialty hydroponic techniques; and how to choose varieties for hydroponic production, from Johnny's Selected Seeds.
Introducing some of Johnny's favorite recommended varieties for hydroponic growing systems. As a solution-driven company, we aggregated results from trials with independent hydroponic growers with our own variety knowledge and information received from our suppliers to compile our Hydroponics Performers category.
This tech sheet describes common hydroponic growing media options; and how to select which one is best for your needs; how using plugs differs from using a soilless mix in hydroponic production; monitoring salt buildup in different types of media; and maintaining medium hygiene.
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.
Johnny's recommended varieties for hydroponic growing systems. As a solution-driven company, we aggregated the results from trials with independent hydroponic growers, in combination with our own variety knowledge and the information we receive from our suppliers, to compile our Hydroponics Performers category.
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.
Johnny's online Hydroponic Head Lettuce Catalog is shoppable, interactive, and downloadable — all the features that make for a convenient, ecoconscious shopping experience.
This guide provides prospective hydroponic growers with introductory information about crop production using various common adaptations of this growing method.
This tech sheet describes some of the most common pest and disease threats in greenhouse and hydroponic systems, as well as prevention basics, with links to recommended references for further reading.