you can put them into flower when ever you want... it all depends on what you want

you can keep em in veg for a year

or start them in flower from seed


most people work with how much room they have got, because a plant generally doubles in size from the beginning to end of flower

so say you had 5 feet of verical grow space to work with

you could safely veg a plant to 2 feet tall or shorter without worrying about space

others just wait untill they see preflowers, because that way you know your plant has reached full maturity and will produce the biggest best buds it possibly can

naturally the longer you veg your plant the bigger/better yields and smoke you will get

if its just your first run and you wanna get your feet wet a lil go ahead and switch em to flower and experiment with your bloom nutes and what not


but you could wait if you wanted too, thats what im saying

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