Can you decorate you house on Animal Crossing?

Well, it's up to you how you decorate it. If you send your original town fruit to other town members they'll send exotic fruits back to you that you can plant. In Nook's shop he sells flowers. Buy a shovel and start planting. Also if you plant certain flowers next to each other they'll create exotic ones or hybrids. This extremely works during the flower fest which in April the second week on a Monday. And last if you create designs you can post them in patches around town. There maybe more so just see what you can do. Trust me, you got an Animal Crossing professional giving this to you here.