I a similar lesson on a dutch art teacher’s website at least 5 years ago. I do it with First Grade and we base ours on the Carlsbad Flower Fields.
They use a ruler and a green or brown pastel to do the horizon line, vanishing point and furrows.
We also discuss the history of the ranuculus and the Carlsbad Flower Fields.
Students may do this horizontally or vertically. The sky, flower colors, and farm design is their choice.
I brought it back this year when we had to move rooms due to testing and wanted a “low mess” project.