I purchased these jiffy pots on Amazon:

http://smile.amazon.com/dp/B00TUEU462/ref=sr_ph?ie=UTF8&qid=1432091770&sr=1&keywords=jiffy+pots

I mentioned this in another post and heard some concern about jiffy pots, which it turns out, seems warranted.  My roots have grown pretty quick, but I see what is happening now.  As you can see, the roots have started to grow out the top, and down to the bottom, but none on the side.  I believe they went out through the hole in the bottom.

I think I will transplant after carefully cutting away the jiffy pot.

 
 

Looks as though the experiment is working nevertheless (Nice!). I would definitely tear the pot as you replant. to make root access easier into the new soil. You can probably redirect the young roots as you plant being very careful. It will nevertheless, end up being extra work.

Good luck, and Congrats on the work!

Hi adipose,
I wouldn't pot up before the pot is almost full of roots. You may kill the cutting from transplant shock if you do it now .
I like to start with bigger recipients to avoid that problem of roots escaping the container too soon.

Yeah, I will leave it in there for now.  I poked a couple holes in the jiffy pot by removing the outer cup (I have the outer cup and the split cup inside).  I don't like all the roots coming out the top, but I think I will add some soil to cover them for now and just live with it until it is ready to transplant.

The only reason roots will grow out of the top like that is if your humidity levels are too high.  This is one of many reasons why I don't use humidity bins.  If your humidity levels are a bit lower, the root will self prune as soon as it gets to the top of the soil. 

The same thing would happen if you did not have a jiffy pot.  Jiffy pot is not causing the root to grow out of the top, high humidity is.  Not that I like jiffy pots or think you should use them, just you should understand why stuff is happening a certain way.

All you have to do to fix the problem of the root growing out of the top is lower the humidity levels a bit, and it will naturally dry up and fall off.  Which is what you want, even if you don't know it or it scares you.

Thanks for the info, Rob. I didn't know that. I have my humidity at 72%. Surprised that would be high enough to cause this behavior.

I agree with Rob regarding the roots growing out of the surface of the soil.

Here is the post that got me started using the jiffy pots:
http://figs4funforum.websitetoolbox.com/post/pictures-of-new-rooting-technique-5370584?highlight=jiffy&pid=1276613670#post1276613670

It is difficult to see from your photo how much soil you have between the jiffy pot and wall of cup.  I typically add moist potting mix to the cup about 1/3 of the way up.  Then I saturate (or near saturate) a jiffy pot with water and put it into the cup using a cork-screw motion to "seat" it into the soil.  You should see also that some of the soil rides up along the wall of the jiffy pot.  I then add a bit more soil between the jiffy pot and the cup so that the lower ~ 1/3 of jiffy pot is covered by potting mix.  Finally, mix is added to the jiffy pot itself.  I water whenever the color of the jiffy pot indicates it is dry.  I stop adding water when the color indicates it is moist.  I sometimes add a bit of water through holes in cup using a syringe so that the soil between the cup and jiffy pot gets moisture too.  I almost always see roots penetrating the bottom and lower walls of the jiffy pot and appearing against the wall of the cup.  I then go ahead and pot up to 1 gallon.  When I pot up to 1 gallon I carefully perforate the wall of the jiffy cup in 2-3 places to facilitate the roots escaping.  I've heard that there is a new version of jiffy pot that doesn't work as well i.e. roots have more difficulty penetrating.  Maybe I've been lucky but I'm also using the jiffy-3 pots and haven't noticed any difference.  I've had good success with this system.

It is possible that the roots growing up out of the soil happens when the humidity of the ambient air is about the same as that of the potting mix, rather than based on a certain absolute level.