Paperpot Opening Kit

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  • A pair of spreader bars and a single spreader frame allow you to start using paper chains with minimal equipment
  • The spreader bars are used to pull the paper chain apart; the spreader frame holds the paper chain open while you fill it with soil
  • Save by purchasing this kit versus purchasing both items individually
A must have and makes opening the paper pots a breeze!


Paperpot Opening Kit

The Paperpot Opening Kit contains the tools needed for the first step in the Paperpot Transplanter seeding system. It includes one pair of spreader bars and one spreader frame. The spreader bars are designed to slip inside the tabs on each side of a paper chain. This allows the paper chain to be stretched open like an accordion and installed onto the spreader frame. In the open position, it will now fit perfectly into a tray.

What’s Included:

Spreader Bars (1 Pair)

Modern Grower Spreader Bars are a new and improved iteration of the original Japanese version. They are made of high-quality steel and shaped more like rods (as opposed to bars). This new design is unbendable and designed to last. They have a pointed tip, which helps them slide into the paper chains with greater ease, and comfortable handles for better grip. Twisting the rods as you insert them into the tabs will help to avoid tearing the paper.

Spreader Frame (1)

The Modern Grower Spreader Frame is made of rigid metal and is stronger and less bendable than other versions on the market. It has seven teeth on each side designed to slide into the side tabs of a paper chain. The spreader frame fits perfectly into a Paperpot Germination Tray.

How To Use:

• Select the appropriate paper chain pot according to your desired crop spacing (2”, 4”, or 6”) and insert your spreader bars under the white paper tabs on either side of the paper chain, being careful not to tear the paper. Note: It does not matter how the writing on the paper chain pot faces—either way will work.

• With the spreader frame in front of you on your work surface, teeth facing up, pull apart the paper chain pot (like an accordion) using the spreader bars as handles. Keep pulling until the paper chain is approximately the width of the spreader frame.

• You’ll notice an offset tooth in one of the top corners of your spreader frame. Examine the honeycomb pattern in your stretched paper chain pot and reorient it (if necessary) so that the offset corner of the honeycomb lines up with the offset tooth of the frame.

• Start with one side and position the paper chain pot honeycomb cells over the teeth of the spreader frame. Every other row will be attached to the spreader frame. Note: If you are having trouble aligning the paper chain, it may not be stretched far enough; keeping the paper chain pot stretched the entire width of the frame will help the cells to line up correctly with the teeth.

• After the first side is successfully inserted into the teeth of the spreader frame, finish by placing the opposite side onto the frame as well, being careful to line up the cells appropriately with the teeth of the frame.

• After the paper chain pot has been successfully stretched and placed onto the frame, you can remove the spreader bars and set them aside.

• Take an empty Paperpot germination tray, flip it upside down (holes up), and place it over the frame and the expanded paper chain.

• Holding both sides of the tray AND the spreader frame, flip everything right side up.

• Keeping the spreader frame in place, the tray can be filled with potting mix.

Frequently Asked Questions

Customer Reviews

Based on 13 reviews
Rod Olson

Paperpot Opening Kit


The spreader bars are well constructed and sturdy. The best feature of these spreader bars compared to the old flat insert design is that these rounded rods slide up through the paper chain seamlessly and do not get easily caught in the chain causing a rip. Going to last a long time.

Paui Simoneau

Does the job. Essential tool for use of paper pot chains. Get a few.

Andrew Ely

Necessary for any paperpot operation. Makes everything easy.

Ryan Kalivretenos

I like the new design of the spreader frame. Buy a lot of them to speed up your seeding process!