User blog comment:FinalWholockianGrrlGamer/Headcanon: Ruby's Silver Eyes, Qrow, and Ozpin/@comment-123.211.148.109-20150717110526/@comment-4010415-20150717135947

This blog post is from 2013, so you're necroposting.

Also... I'm pretty sure the rose petals are just how Ruby's Aura manifests itself. Ruby has red rose petals, Yang has fire that appears in her hair, and Blake has had her hair temporarily dissolve into shadows before. Not to mention that, in the Volume 2 opening sequence, all four members of Team RWBY have something trailing off of them - rose petals for Ruby, snowflakes for Weiss, shadows for Blake, and fire for Yang.

So, yeah, rose petals coming from Ruby probably isn't anything overly special.