(1 customer review)

JP1 – Jang Speed Seeder No. 1


The JP-1 is a single row seeder and can be used for a wide variety of crops making it the industry standard seeder for market gardeners. There are a wide variety of rollers available for the JP-1 that can cover seed sizes from carrot to peas.

SKU: JP1 Category:


The JP1 is the classic single row Jang seeder.

It has become an industry standard for market farmers all around the world due to its ability to perform well in all soil conditions while being used for a wide variety of crops.

There are a wide variety of rollers available for the JP1 that can cover seed sizes from carrot to peas.

The JP1 is made in South Korea and its quality is second to none.  The heavy-duty construction will keep it going year after year, unlike cheap Chinese knockoffs.  If cared for and properly maintained the JP1 will last a lifetime and like be the only single row seeder that you ever buy.


  • Extremely high accuracy seeding in most soil conditions
  • Unlimited seed spacing options – change rollers and gear ratios to get the perfect in-row spacing for your crop
  • Singulate seeds – from small seeds to large seeds the JP1 gives you the ability to plant a single or as many seeds as needed.
  • Quick release hopper makes changing rollers and pouring out seed easy and fast
  • A covered hopper means you can plant in the rain without ruining seed
  • Adjustable handle for height
  • Handle push bar slides from side to side so you can seed comfortably from either side of the bed
  • Changeable gears for adjusting seed density in-row
  • Clear plastic hopper to view seed level
  • Hopper volume = 0.26 gal
  • Includes interchangeable sprockets #: 9, 10, 11 (2), 13, 14

The Jang ships from a third party shipper, and when you receive your Jang JP1, the only assembly required is to place the handle onto the main body.

*Rollers must be purchased separately. The Jang will not work without rollers.



Below is a chart detailing the gear ratios and rollers needed to plant the following crops with the JP1.

There are FOUR variables to adjust when operating the JP1:  the rollers, the gears, the number of rows per 30-inch bed, and the hopper brush, which is the little brush inside of the hopper which controls the amount of seed flowing from the roller.


Front x Rear

ArugulaYYJ-2414 F x 9 R9down
CarrotsXY-2414 F x 9 R


Lettuce (loose leaf)F2414 F x 9 R9down
Mustard / MizunaF2414 F x 9 R9down
RadishF2414 F x 9 R7down
Baby Kale (Red Russian)F2414 F x 9 R9down
Salad Turnips (Hakurei)X2414 F x 9 R5down
Spinach (baby)LJ2414 F x 9 R9up
Spinach (large)LJ2414 F x 9 R5up

*When adjusting your hopper brush, we suggest only opening it all the way up and all the way down. In the chart below, that’s what we are referring to.

Additional information

Weight35 oz

1 review for JP1 – Jang Speed Seeder No. 1

  1. Alan Seiler

    I love this seeder. It is made with so much thought and detail it’s stands out from other seeders. It works well in all soil types and has a good range in what conditions it can perform in. I have used it in dry and wet soils and works like a champ in either. The rear wheel has a foam covering that doesn’t allow the wet dirt to stick to it and also has a mud cutting piece to make sure nothing builds up. If you have ever tried to seed in wet conditions you know how important that is.

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