Celene, I would choose the 3", as they are going to multiply. Sounds like you got some pretty ones! Did they have names? Were any of them Serge Saliba? His are beautiful. Yes, just let the pots dry up starting in October November. I just stack them up and put them where they won't freeze. Early April I begin to lightly water them & get them moist to waken them up. Then you wait for them to wake up and grow. So easy. I can't wait for mine to multiply! Expensive little critters, aren't they??? I just ordered some today , one was $10 plus shipping.!