Regarding perennial grasses potted in plastic pots; how should the grasses be protected during the winter?
I wish I knew 2 things: where you live (zone, etc) and what type grass you have. I have heard of people wrapping their pots in bubble wrap or other insulation material. I have my doubts about that working if you live in the colder zones. Can you heel it in somewhere? Two other possibilities come to mind. One is to collect seed and winter sow your grass. The other is to cut it down after it goes dormant and bring it inside to an unheated basement. All this assumes you live in zone 5 or under. I don't know what is necessary in zones 6-7.