I planted a marijuana plant about 5 weeks ago. The plant is doing very well. I woke up this morning and I went to look at in and noticed under the plant a random ass seedling is sprouting. How the hell could that happen. I only planted the one seed 5 weeks ago. How could a seedling grow it has 4 leaves a good steam I'm about to put it in a plastic cup and grow it. But how the hell could a random seedling sprout?