you can put large pots on rolling trays so you can move them around when you need to. Be sure to use saucers under your pots, you don't want to keep the wood/deck wet underneath-it will stain it, make it rot faster and invite unwanted insects (termites). You just need to decide what you are going for, veggies to eat? a small fruit tree? something that flowers or only foliage? Do you want to attract bees?(probably not since it's on your deck) what color scheme do you want, how much time do you have to care for the collection, if you have pets or kids -nothing toxic. ect
