First time... Hello, too all of you..

I am planing to grow 2 or 3 plants in my balcony, outdoors white widows seed. But i´ve never don it before. I am a little bit lost (i´am laying i´am totally clueless). After the germination i will place them in a pot in the balcony. which receive sun the hole day. would that be enough, or too much sun..? How much water..? how big schould be the pot.? i got so many question, and i search in a lot of websites but i haven find my case. Outdoor seeds in a pot in a flat. No growing room is need it. Thanks for all the help and your advices, i need them. Greetings