Because it was difficult to make plant growth using blender’s geometric nodes, I found a way to make plant growth using curve and curve extrude in maya. We can control the size of the subcurve to control the growth of the branches. To be honest, this method is much more convenient because I can also control the points on the curve to move the growth direction and size of the branch.
I can use bend’s function to control the bloom of flowers.
I used mash to copy multiple flowers onto the branches and then animate the initial flower’s size and bloom.