Some clones without roots?

hey

i'm wondering how long clones remain viable without roots. I started 24 clones(my first time) 15 days ago. They all remained ncih and green and healthy looking. I saw some rooting so I transplanted the rock wool pods to soil. As I did this I noticed that most had great roots, some just ok and about 5 of them seemed to have no roots at all, but still looked healthy. Is this normal? Do they still have a chance to root? Half of my clones are blueberry and I have heard they are hard to clone. Could they be taking longer?

yes - I've had clones that have rooted after a couple of months. As long as they're green and upright, there's a chance to root.