A horticultural container includes a tag slot for receiving a display tag. The tag slot has an inner wall and an outer wall spaced widthwise from one another, and one of the inner or outer walls has at least two curved peaks separated by a valley and extending into the slot towards the other of the inner or outer wall to hold the tag against the other of the inner or outer wall. The peaks provide a radius that reduces cracking of the tag and increases longevity thereof, and reduces tag sagging, collapsing, or curling.