sets the start limit of the allowable date range
scheduler.config.limit_start = new Date(2018,5,15);
scheduler.config.limit_end = new Date(2018,6,15);
...
scheduler.init('scheduler_here',new Date(2018,5,30),"week");
The property requires the limit plugin to be activated.
The limit_start/limit_end configs allow limiting a range available for creating new events. You can also limit the possibility to view events outside the allowable date range, by using the limit_view property:
scheduler.config.limit_start = new Date(2018,5,15);
scheduler.config.limit_end = new Date(2018,6,15);
scheduler.config.limit_view = true;