Unpack the smaller of the two boxes which contains the watering/feed tray and the four metal parts of the stand.
Piece together the four tubular components of the stand. The two shorter parts are designed to be on top. Slide the end over the top of the longer base components with the hole aligned with the exposed buttons.
Ensure the buttons are fully engaged and protruding through the holes.
Place the entire tray on top of the stand with the slotted grooves snug on the stand.