I ain't no probabilities expert, but I think if you flip 6 coins, you don't have a 99% chance of one of them being heads. I think it's less. And if you do it enough, you'll end up with all tails for sure at some point.
Now if you flip 100 coins.... But not everyone has room to flip 100 coins.
No, if you flip 6 coins you will always have a 50% chance that each flip will be heads, period! That will always be the odds....
However the law of averages doesn't always work in our favor, sometimes we get more "heads" and sometimes more "tails".
If you were to grow out 100 plants I'd bet you'd have really close to 50/50, but before that you will probably have more of one than the other.