Wear virtual reality 3D glasses, to see as a 3D image. Click on left side of screen, to place seed. Hold the click to grow flower (right side copies left, but displaces larger flower more, making them stick out more, as if they grew taller). Making flowers of different sizes works best.
Flowers on right copy those on left, but are displaced in proportion to their height and size, creating a 3D VR effect. You could cross eyes to merge left and right images, if you don't have VR glasses. Holding down mouse to grow more. Left sprite follows mouse. Can't click on right side.