When you first receive your plant from greenrThings, it will be in a pot that is between three (3) and six (6) inches in diameter. Your plant will need two inches in addition to this, in order to accommodate a drip tray under the pot.
There is a lot of variability in the height of plants. So while you can estimate how tall it may be by looking at photos, we’d recommend not limiting how tall your plant can be (placing a plant in a bookshelf, or under an overhang).
Of course, as your plant thrives under your expert care, it will need more space!