Planning Tools &
- Seed Quantity Calculator
This tool helps you predetermine the number of seeds or plants you will need for a given amount of space.
- Stationary Caterpillar High Tunnel Worksheet XLS
This spreadsheet will help you determine costs to build a stationary caterpillar high tunnel at a given desired length using materials suggested by Johnny's.
- Stationary Traditional High Tunnel Worksheet XLS
This spreadsheet will help you determine costs to build a stationary traditional high tunnel at a given desired length using materials suggested by Johnny's.
- Moveable Caterpillar High Tunnel Worksheet XLS
This spreadsheet will help you determine costs to build a moveable caterpillar high tunnel at a given desired length using materials suggested by Johnny's.
- Stationary Traditional Gothic Cathedral High Tunnel Worksheet XLS
This spreadsheet will help you determine costs to build a stationary cathedral high tunnel with traditional style coverings.
- Moveable Modular Gothic Cathedral High Tunnel Worksheet XLS
This spreadsheet will help you determine costs to build a modular moveable cathedral high tunnel using materials suggested by Johnny's.
- Seed-Starting Date Calculator
This tool figures the dates when it's safe to plant particular early crops outside, based on the frost-free date that you specify.
- Succession Planting Calculator XLS
This spreadsheet calculator allows you to input the date of your first planting of each crop, then it calculates the dates for later plantings. It also allows you to input your first frost date, counting back the appropriate number of days to determine the last date to plant and still get a crop before frost.
- Target Harvest Date Calculator XLS
Use this tool to coordinate production of one of more crops for harvest by a user-defined target date or otherwise important event. Determine seeding date relative to a specific harvest date.
- Fall-Harvest Planting Calculator XLS
This spreadsheet calculator works backward from your first frost date to determine the date to start seeds for crops that will mature as it gets cold.
- Grower's Library
Johnny's Grower's Library contains an extensive selection of helpful product and methodological information, including manuals, charts, planting and growing guides, technical articles, instructional videos, and more. Browse information specific to each of our seed and plant product lines: vegetables, flowers, herbs, and farm seed, as well as tools, supplies, methods, organic certifications, labels, and material safety data sheets.
- Flower Culture Comparison Chart PDF
This chart can help you select the best flowers for your situation. Information includes application, germination time, transplant information, days to harvest, and growing tips.
- Herb Culture Comparison Chart PDF
This chart will help you plan your herb growing strategy. Information includes germination time, transplant recommendations, and days to harvest.
- Vegetable Crop Planting Programs
A series of Planting/Programs indicating which varieties of particular crops are best adapted for planting and harvesting in the different seasonal slots, pretrialed and selected by Johnny's Research Team.
- Growing Ideas
New & Recently Revised
- Top Picks for Getting Started with Micro Greens • 7 Recommendations for the Beginner
- Guide to Year-Round Micro Greens Production • Planning, Sowing, Production, Harvesting & Marketing
- Micro Greens Yield Trial Results • Comparison Chart for 29 Popular Varieties
- 5 Cool Flowers to Plant Now • Lisa Mason Ziegler's Tips & Recommendations for Hardy, Cool-Season Annuals
- Classic Storage Crops • Guidelines for Post-Harvest Handling, Storage Conditions & Shelf Life
- Johnny's Carrot-Growing Guide • 4 Keys to Successful Carrot Culture
- Late-Summer Recipe Preview with Farmer–Chef Frank Giglio • 'Valentine' Red Grape Tomato & 'Red Ember' Cayenne Pepper
- Fifth-Season Regional Floral Design Elements • Celebrating the Beautiful, the Abundant & the Unexpected
- Slow Flowers Floral Forecast • Part 2: Palette & Petal Crushes
- Slow Flowers Floral Forecast • Part 1: A Summary of Industry Insights & Trends