Took 3 days for tail to come out of seed shell. 100% Happy Frog in 16 ounce solo cups. On day 2, I added a pinch of AG Pure Protein (15-1-1) and these did not skyrocket like the Rainbow Zoap I also have going. Appear to have a black mark on the seed tail like it burned. Dropped in soil and they are sprouting. Not sure if I try it again!!