If they've grown, they're getting too much light.

Last strain I worked with was 11 days from cutting till roots protruded from a rapid rooter, very consistent. So you still may see success with these. If not...

The sites where you're hoping to grow your roots shouldn't be visible to you. You will know you've been successful when your roots protrude from the medium. If you can see the actual tissue where you want roots to grow, it's not well-enough covered with your medium, and it's not dark enough.

Rooting clones is a race. You're trying to grow roots before the warm, moist environment grows pathogens that will kill your clone (hence the hormone / rooting potion and low light). And, before dehydration (via transpiration through the leaves and stems, primarily) wilts your cutting (anti-wilt sprays, leaf trimming, humidity dome, and again, low light all help you with this.)

Get yourself some anti-wilt spray (I use Vita-Grow brand; it's just a food-grade wax coating) and get those cuts into near-darkness.

Also, you must be lab-grade clean. Sterilize cutting blades between subjects. make each cut on a fresh, sterile surface. Blades should be sharp, or better yet, new. Single-edge razor blades, or Exacto #11 (my fave) should be cleaned to remove any rust-inhibitive coatings (oils, etc.) that might be on the blades.

Rooting compounds can be contaminated, and they can "go bad." I once killed a whole tray of cuts with some Clonex ($$$) I had contaminated by dipping a diseased clone right into the bottle. I now use Dip-n-Grow (cheap), and mix a fresh shotglass-full each time. I'd advise against the "bark removal" trick when using a rooting hormone. You're creating potential infection sites and possibly damaging vascular tissue, as well as possibly removing the cellular material that you're trying to differentiate into root cells.

Although I have used many perlite-vermiculite mix ratios, I think the rapid rooters have helped my success. They're also a little neater; probably easier to maintain sterile conditions.

Your mix looked good, though--I bet it'll work fine if everything else is tuned in.

There's a section in one of stinkyattic's stickies about cloning. I'll try and find it. Cloning is like having a goose that lays golden eggs--100% known females, already mature at 4" tall. :thumbsup: