My huband and i do landscaping and mho is after 6 weeks def give it a nice haircut! The whole water frequently timeframe has past so just do so in the evening on a regular basis depending on amount of rainfall of course. As far as fertilizer thats on a case by case basis....we laid sod for a customer 3 weeks ago...no fertilizer.. watered dsily for 1st week and cut for 1st time last friday. It is growing wonderfully, very thick, super green and all are satisfied
good luck, a nice lawn is worth being happy about! 4951