I popped three in Rapid Rooters. Two pushed their tap root out the top so I had to plant them into seed starter cups like I normally do, without Rapid Rooter. I left third one in Rapid Rooter since the tap root was secure. After watering these three, one without Rapid Rooter got drowned and lost. I dug around with a toothpick and couldn't find it. I thought it was a gone so I popped two more in seed starter cup withOUT Rapid rooter. Two days later the two new seeds and the drowned seedling popped above the soil line. Now I have Five popped. I only wanted 2 for the 4x4. Might leave the autos in the 4x4 and these four regular seeds into 5x5. Irie Genetics can't be beat.