Key Growing Information

Stock | Key Growing Information

Written by our research team, this reference contains the essential information for growing STOCK flowers from seed. Read more for a successful harvest!
Written by our research team, this reference contains the essential information for growing rootstock tomatoes. Read more for a successful harvest!
Follow the detailed recommendations in this Tech Sheet for successful production of stock flowers (Matthiola incana), from Site Selection and Culture to How to Select and Prepare Seedlings for Double-Flowered vs. Single-Flowered Blooms, Transplanting, Pinching, Pests and Diseases, and Harvesting, from the Flower Research Team at Johnny's Selected Seeds.
Get a tour of our late-winter/spring-sown stock trials, with variety recommendations and tips for successful early-spring production, from the research team at Johnny's.
Follow the recommendations in this Tech Sheet for best results with germination of 'Maxifort,’ an interspecific tomato cross — the product of traditional plant breeding crosses between a domesticated tomato parent and a wild tomato parent. To improve germination rate and uniformity, we recommend careful consideration of the measures we have outlined here.
Johnny's is 100% employee-owned. Learn more about our employee stock ownership plan (ESOP) and what it means to you as a grower.
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...
A slideshow recap of Johnny's Fundamentals of Tomato Grafting Webinar. Topics: • Why graft? • Rootstock selection • Demo: How to top-graft • Healing protocol • Grower experiences • ADDITIONAL RESOURCES
Follow the steps in this Tech Sheet for best results with top-grafting greenhouse cucumbers onto an interspecific squash cross rootstock to reach earlier harvests, improve plant health and stress tolerance, and increase net income.
Here are Lisa Ziegler's 5 recommended "Cool Flowers" — cold-tolerant hardy annuals for overwintering and shoulder-season growing for the earliest possible blooms in spring.
Follow the detailed instructions in this Tech Sheet to graft desirable fruiting tomato varieties to vigorous, disease-resistant tomato rootstocks as a cost-effective method for overcoming disease and production-related issues; improving overall crop health; reducing or eliminating the need for pesticide use; lengthening harvest duration; and significantly increasing net income. The entire process from sowing of rootstock and scion varieties to final transplanting of grafted plants into greenhouse soil or soilless media normally takes 6-8 weeks.
Follow the detailed instructions in this Tech Sheet to reap all the benefits of side-grafting: overcome disease and production-related issues, improve overall crop health, reduce or eliminate pesticide use, lengthen harvest duration, and significantly increase net income. The entire process from sowing of rootstock and scion varieties to final transplanting of grafted plants into greenhouse soil or soilless medium normally takes 6-8 weeks. The major advantage of side grafting is that this method is more forgiving of differing stem diameters than top grafting...