We are aware that some jurisdictions have restrictions that require that watering be conducted only biweekly. Because the Blossom schedule is current week-based, this is a bit challenging to program, but it is possible with some manual intervention:
Set up a weekly schedule for how you want the system to run.
Go to the monthly calendar and turn off the required days for every other week.
This process should only take a couple of minutes and can set up your controller for months in advance. For more details, refer to page 43 of the Blossom Quick Start Guide.
There are also even, odd, and every-x-days options, for those with different local water restrictions.