Mine sometimes go to 24 to 30 inches before they get the crosswise bands.

It sounds like your plants are fine.

Thank you very much. I will just be patient and see what happens.

Agree. Just seeing bands on mine now. They've been up for a while. 2 feet tall.

Shady,

I was looking for an answer to this question...did your zebras get stripey? I just picked up 3 containers labeled Zebra Grass from Lowes. I see evidence of a tiny amount of striping but nothing much and want to make sure that they will stripe up later. Thanks for the reply.

Meig

Very funny -- I went through this same head scratcher last spring/summer with my Porcupine grass. I learned that it is the stresses of heat and longer days that bring out the bands in the banded grasses. I have a mature clump of 'Strictus' in the ground and it is over 2 feet tall now and nary a band yet. This will change though! This year I know better -- grasses have nuances and it takes a while to learn them.