is the following ways the only way people are able to attain food for their chocobo's??
Or will there be alternative ways to be able to get food for your chocobo such as harvesting, retainers, or purchasable through an npc. I have heard a lot of concerns about this. People with small, mid size, or even large FC houses would never be able to grow food fast enough for everyone

The following items can now be obtained through gardening:

Gysahl Greens / Krakka Root / Thavnairian Onion / Curiel Root / Sylkis Bud / Mimett Gourd / Tantalplant / Pahsana Fruit / Onion Prince / Eggplant Knight / Garlic Jester / King Tomato / Mandragora Queen / Pear Roselle