Board Thread:The Quarters - Q & A/@comment-208.102.42.42-20180821161345/@comment-25085701-20180821183716

That's probably a little more complex than the developers anticipated. But we do have a Repeat Monthly / Yearly option under Edit task, and also 'Repeat every X days' -- I just tested setting it to repeat every 82 days, and also Monthly. You can also have a 'Start On' date in there, so you can set it up to show up as due when planting season starts for a specific thing.

Let me know if you need more help. :)