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Jiffy in cannabis crops, all the information

One of the most popular products in Grow shops is jiffy, due to its low price, versatility and ease of use. But not everybody knows about the existence of these small objects, or many people do not know how to use them. For this reason we thought it would be appropriate to create this post, explaining what it is, how to use it and the advantages and disadvantages compared to other methods.

🧐 What is a jiffy ?

They are so called because they were commercialized by a company known as Jiffy Group and they are peat or coconut fiber that comes pressed and wrapped in a thin mesh. They have the shape of a small, cylindrical and flat disc which, when wet, swells up to multiply its size upwards, and contains a small hole at the top to introduce the seed or the stem of the cutting.

Its creator was an enthusiast of home-grown cabbages and other vegetables, but he did not like the way they sold the cuttings because of the lack of protection of the roots. It was for this reason that he began to develop individual seedlings that were easy to transplant, and thus the first Jiffy were born.

Image of jiffys where you can see 4 as they are sold and one already hydrated*

Jiffy Pellet Sizes

They are available in different dimensions: 24 mm. (0.94 inches), 33 mm. (1.3 inches ), 41 mm. (1.6 inches) and 70 mm. (2.75 inches). Although the most used are the 41 mm. (1.6 inches) ones. They usually come in boxes of 2000 units, but luckily stores can sell you the exact number you need and at a very good price.

👾 Are these peat or coconut discs organic and biodegradable ?

They are totally organic and biodegradable, it is the same peat used in commercial substrates, natural. Just as with the coconut fibre, this type of jiffy was released more recently for those who love growing on this substrate, but it is made up of the same fibres that are used in coconut bricks. Even the small mesh it uses is biodegradable in a very short time, so it can be considered that jiffy will leave no trace on the planet after its use.

🎯 What are the advantages of using it ?

  • More economical than any pot
  • You can germinate many seeds in very little space
  • Makes transplantation much easier
  • Keeps humidity for a long time

🔥 How to use Jiffy pellets for germination or cutting

  1. First prepare a bucket with the nutrient solution, in this case clean water and root stimulator, with the pH lowered to 6.0 and a little bit of micro life
  2. Insert the jiffy pellets so that they are immersed in the nutrient solution
  3. Wait for them to hydrate and swell, usually no longer than 10 minutes
  4. Take the jiffy pellets out of the bucket one by one and and drain it a bit to let go the excess of liquid
  5. Place them in an upright position on a tray, with the hole facing upwards, and insert a stick or similar through the hole to make it easier for the seed or stem of the clone to enter
  6. Carefully insert the seed 0.4 inches (1 centimetre), or the stem of the cutting until at least one knot is buried
  7. Wait several days until you see the roots coming out of the mesh. If it’s a seed, as soon as you see the radicles popping up transplant it. With a cutting, wait until you see quite a few roots on the outside

Infographics representing how to use a jiffy pellet*

Transplanting from Jiffy Pellets

It is very simple, in fact it is designed to facilitate the transplant among other things. The best thing is that you don’t have to take the plant out of the jiffy to put it in a pot, as is the case when transplanting cannabis from one pot to another.

In this case it is only necessary to prepare the pot where we are going to put it, to add substrate until filling up a 75% approximately, to introduce the jiffy with the plant and to add more substrate until burying all the jiffy and part of the stem.

Tips for use

The small jiffy pellets, of 24 mm. (0.94 inches) and 33 mm. (1.3 inches), are more intended for cuttings than for seed germination. This is because due to their small space the roots appear very quickly and in addition a better aeration is achieved when many clones are placed in the same tray.

On the other hand, when germinating seeds it is better for us that the jiffy is a little bigger, the 41 mm. (1.6 inches) one is perfect, because it contains more food and keeps humidity longer. The worst thing that can happen to them is that they get too dry, because then it takes a lot of time to rehydrate them.

✅ Can you use Jiffy pellets for hydroponics ?

It is not ideal, since this system needs a great aeration in the roots and jiffy does not allow this, at least at the base of the stem, so it can get to form fungi, although it would not be the first time we see it.

In this case it is much more interesting to use small grid pots with arlita to germinate and then place them in the hydroponic system. Another option is to use rockwool slabs, which allow for greater oxygenation, although we’re still sticking with the hydroponics grid pots.

Photograph of a hydroponic crop with rock wool*

Rock wool Vs Jiffy Pellets

Rock wool slabs have certain advantages as we saw before, but they have the disadvantage of being an inert material, so they need food from the first watering. Jiffy, on the other hand, contains pressed peat, which contains food for a few days, although it is always good to add root stimulator. Both are quite cheap, but it’s still cheaper to use a pressed peat or coconut pellet.

⚠️ Conclusion

A Jiffy pellet makes the job much easier for us cannabis growers and for its price it really pays off. If you have not tried them yet, I invite you to do so, because afterwards you may not want anything else to germinate, and especially to root your favorite clones. If you liked this post or think it could be useful for some other people, please share it.

Jiffy or pressed peat discs came on the market to make the process of germination, cloning and transplantation easier…

Jiffy Pellets

  • Jan 30, 2007
  • #1
  • Bagzgroove
    New Member
    • Jan 30, 2007
  • #2
  • delicato420
    New Member

    Re: Jiffy Pellets. . .

    The roots easily grow through the mesh of the pellets. But for transplant cut off with blade or scissors. Be careful with roots. You will save most but lose some.

    • Jan 30, 2007
    • Thread starter
    • #3
    Bagzgroove
    New Member

    Re: Jiffy Pellets. . .

    I let an empty pellet soak this morning and just tried to remove the casing, and it just crumbled away real easy. . . I’d rather not take these off, but I’ll d what I gotta do I guess. . . any other opinions. .?

    • Jan 30, 2007
  • #4
  • MadameCrash
    Active Member

    Re: Jiffy Pellets. . .

    Leave them on.. healthy strong roots will grow through them no problem. I use them for starting seeds, and never have a problem unless the seedling is weak to begin with. The trick with Jiffy’s is to squeeze the excess water out of them after they’ve full expanded. then roll them between the palm of your hands to fluff them back out again. Then put your seed in them. It will keep them from rotting – and they grow strong taproots in the fluffed-out peat.

    Hope that made sense.

    P.S. Roots are really really strong. for example. Tree roots can crack concrete and break pipes

    • Jan 30, 2007
  • #5
  • Akornpatch
    New Member

    Re: Jiffy Pellets. . .

    I have a different opinion than MC. I lost a A+++ PRIMO $350 crop of seedlings using Jiffy pellets 2 springs ago. I hate them and NEVER recommend them. It could be that I’m a moron, but.

    If you do use them I’d recommend taking the mesh bag off at transplant. and before the tap root breaks out the bottom. It will peel away easily.

    • Jan 30, 2007
  • #6
  • Gorillabuds
    New Member

    Re: Jiffy Pellets. . .

    The mesh wrapped around a jiffy pellet is very fragile and a root system has no problem making short work of it. The only problem I ever had with peat pellets is that they retain too much water and tend to rot the base of seedlings. Even when you squeeze out the excess at first, at some point water has to be added and that’s when the problem starts for me anyway. I start everything in the same soil that I’m gonna use all through the grow. It’s easy to mist and thoroughly soak when the seedlings come up and drains well to avoid root rot. I’m not fond of jiffy pellets but the mesh has zero impact on root systems. Like madame said, root systems can break apart concrete. They’ll obliterate drain tile and septic leech beds. They’ll also split a boulder with ease so that mesh doesn’t even slow them down. It’s all about good drainage from the very start. I found the coolest misting sprayer at the dollar store the other day. It holds a quart of water and has a pump on it. Fill it about 3/4 from the top, pump it up and pull the trigger to spray. I should’ve bought 5 of them..lol.

    • Jan 30, 2007
  • #7
  • MadameCrash
    Active Member

    Re: Jiffy Pellets. . .

    I don’t recommend them necessarily; Jiffy pellets are not something I’d recommend for new growers or valuable seeds.. (for those I’d use Rapid Rooters – they are the best for sprouting seeds IMO.)

    Squeezing and Fluffing were the tricks I learned to make the Jiffy Pellets work reliably. They don’t need to be watered again until after it’s sprouted. And then, when I transplant them into soil, I don’t bury the top 1/4 inch of the Peat pellet. This prevents the seedling from getting damping off..

    So, another question. . . I germinated in Jiffy pellets, my question is should I remove the mesh casing from the pellet before planting them. I have heard…