you can do photo of the month.
you need finished diaries for most contests. the grower of the month you can answer questions like this. Howerver, if no journal is attached it is not a "point" toward "Grower of the month" contests. it'll get you more responses if you do attach a diary in future - simply ask the grow question from a specific week of one of your diaries. there's an input box somewhere near bottom. Not that you need to here... looks like both anwers covered majority of it.
Fwiw, rules on contests are sometimes just guidelines - whether purposefully or accidentally. Obviously don't try to enter a non breeder plant in a breeder-specific contest, but say they required minimum 5 pics every week and you had 4 in week 3 of 15 weeks total ... i doubt that'll matter. if the small pot contest says 14 oz, just don't tell them it's 16.. lol it's just a level playing field for the new people if you know these things. monkey see, monkey do it.