4 inch pot. Bright Light, no hot sun. Easy to grow with beautiful glossy leaves. If the coffee plant is grown in ideal conditions indoors, it will eventually flower when it matures, which can take three to five years. Even in the best of conditions, however, you can only expect a few flowers to form, but, if you hand pollinate them, they will produce the berries that contain coffee beans. You may not get enough to brew a whole pot of coffee, but you may get enough to give roasting a few coffee beans a fun try.