this is the first time that i've gotten 9 bags of seeds at once ... just wanted to ask if this is normal?

I was going for sylkis bud seeds, so I planted krakka root seeds then shroud tea leaf seeds in a circular pattern all with grade 3 thanalan topsoil. the krakka roots matured before the shroud tea leaf so i harvested them, and planted more krakka roots in its place, only this time with grade 3 shroud topsoil. when the newly planted krakka roots matured, one of them yielded 9 bags of sylkis bud seeds (along with the normal 18 krakka roots)! has this happen to anyone else?