Use our Seeding Date Calculator to determine seeding dates for all your vegetable, herb, and flower varieties, when you want to plan to harvest your crops on specific target dates.
This interactive spreadsheet displays a matrix of FARM SEED/COVER CROP types, including 32 specific varieties of green manures, grains, legumes, and forage crops, with seed characteristics and Jang JP roller gauge size by millimeters, indicating the best Jang rollers for the particular variety, the roller part numbers, and whether or not the roller when placed on the Jang JP Seeder provides for seed singulation, plus a Notes/Comments field. Click on any Johnny's roller part # or specific farm seed variety part # in this chart to view or purchase. Save the file to your desktop to filter, sort, make your own edits, and keep more detailed records of which farm seed/cover crop sowing practices work best for you.
This interactive spreadsheet displays a matrix of 70 specific varieties of CUT-FLOWER crops, their seed characteristics, and Jang JP roller gauge size by millimeters, indicating the best Jang rollers for the particular variety, the roller part numbers, and whether or not the roller when placed on the Jang JP Seeder provides for seed singulation, with a Notes/Comments field. Click on any Johnny's roller part # or specific flower variety part # in this chart to view or purchase. Save the file to your desktop to make your own edits and keep more detailed records of which flower seeding practices work best for you. (See separate sheet for Sunflower variety results.)
This interactive spreadsheet displays a matrix of 44 specific varieties of 21 HERB crops, showing seed characteristics and Jang JP roller gauge size by millimeters, indicating the best Jang rollers for the particular variety, the roller part numbers, and whether or not the roller when placed on the Jang JP Seeder provides for seed singulation, with a Notes/Comments field. Click on any Johnny's roller part # or specific herb variety part # in this chart to view or purchase. Save the file to your desktop to sort, filter, make your own edits, and keep more detailed records of which herb seeding practices work best for you.
A spreadsheet displaying a matrix 48 varieties of sunflowers, indicating best Jang JP rollers for sowing, part numbers, and seeding notes on singulation.
This interactive spreadsheet displays a matrix of 127 VEGETABLE varieties, seed characteristics, and Jang JP roller gauge size by millimeters, along with the best Jang rollers for the particular vegetable variety, as well as the rollers' part #s, and whether or not the roller when placed on the Jang JP Seeder provides for seed singulation, and a Notes/Comments field. Click on any Roller or Johnny's Roller Part # in this chart to view or purchase. Save the file to your desktop to make your own edits and keep more detailed records of which vegetable seeding practices work best for you.