Kevin,
Good idea. I will need to look at this, I haven't been paying attention to the green or brown cuttings. I will try keeping my green cuttings (rooted) and brown cuttings separated so I can determine if it make a big difference. I just stuck 30 white pakistan a few months ago and they all died, but of the 20 red himalayan, I got some to root ok. I just saw a video for rooting in vermiculite so I might try that on the Australian Green/White Pakistan and see if it helps. It takes about 6-8 wks to see any roots per the video.