regrow

So I’m in a pickle last year I grew a plant outside in my garden Turned out to grow like 12 feet it was a wedding cake from i49 Canada. Well I didn’t get to harvest it due to... weed thieves. So after someone gave up On trying to get it they decided to break and take it was a bloodbath :( So I...

What should I do when I harvest with the root. Do I just cut the plant down to the soil and leave the old root to break down or will that rot and cause issues when I replant? I'm unsure if I should dump the pots and remove the old roots and replace the soil. In the wild I know that the old roots...