DIY Moss Pole HGTV How to Grow Lavender Indoors Gardener's Supply They said, "The absolute minimum pot size for a tomato is 5 gallons, with good drainage." Then my cheeseballs container said, "Hold my beer." Better yet, there's a thriving Italia pepper plant Biodegradable Plant Pots The Green Entity Newbie. Just bought this ZZ from Home Depot. Should I be changing anything? It seems the pot is much too small. I'm in Canada so it is the middle of winter