Haha. Running the lights for 4 hours, then off for 4 hours, then back on for 4 hours. That's how Ive started running all my planted tanks. On from 8am until noon... off until 4pm, then back on until 8pm. This also allows more time to view the tank, for me at least... They're on in the morning and in the evening.
Not sure about local plants. I'm not sure there's a lot of stuff around that's aquatic. Lots of semi aquatic stuff on the edges of ponds and lakes though... more terrarium type stuff.