I just sprouted 6 seeds using paper towel sitting on top of my router. 2 of the seeds cracked within 2 hours, 3 more cracked within 12 hours. The last one sat there for a week or so. Thought it was a dud, so just for shits and giggles I put some cloning root stimulant on it, and I woke up this morning, and not only did it crack, it's got a root that's 3/8" long.