yea that sounds right,the ground definitly drys out alot slower than pots on hot summer days.when i grew outdoors,i used to feed them a gallon or 2 every 4 days if you have 3 str8 90-100 degree days,id definitly be getting out to check on them though.ive gotten lucky and have never had a problem with underwatering outdoors..even though i do know some people that have.i'd normally kinda let them do their own thing when theyre vegging,but when theyre flowering,although they are just a weed.i like to keep a close eye on them.(always gotta be on the lookout for a herm.) but it sounds like your doin good,as long as the leaves are telling you the plants are happy,youre doing good.my indoor ladies drooped their leaves down to me earler so i watered them,i can already see where theyve purked up.i was out of gallons of distilled and i was trying to avoid using tap water so i kinda held them off.which is something i definitly dont recommend.you dont wanna stress them out one bit.theyre happy now though.