Need help starting up

Ok so my last monster died so........i am startin a new..but i had some questions if someone could help me out...so i have this spot in da woods,i put some seeds there and four of them grew,i went back a couple days later three were gone...no leaves stems nothing,one was left it was really nice had about three sets of leaves two weeks from seed...
go back a week later...to put some new buddies i sprouted in cups there...it looked like a tooothpick was stuck in the ground...no leaves or nothin....is this bugs or what?

also i need to know if its to late to start growin in florida...i know by the time they get big theyll wanna flower but im not that worried about it...any advice?

some pics of the spot and the one that withered or something

wow i like the set-up with the other plant surrounding it. Very nice =)

yeah, me too, thats awesome!

thnx idea of mine....and if u look i used the sticks of those to hold the cage

yes very nice, what are those plants? do they grow any bigger?

yeah u just need to look for em....lots were im at hehe...
but got two questions do you think i could grow two plants in that?
and i really didnt put much dirt in the ground i put maybe four inches on top of what was there and there is a sorta gray sandy dirt under it....will it be okay or should i put more dirt?

i would only grow 1 in there, if 2 are in there, it will create competition for space with the roots and probably outgrow its area.