Groovy enum constructor matching

I have the following Groovy enum:

enum Flower {
    Tulip(1),
    Daisy(2)

    private int rank

    Flower(int rank) {
        super()
        this.rank = rank
    }

    int getRank() {
        rank
    }
}

I also have a GardernGenerator class that takes a Flower instance as one of its constructor parameters:

class GardenGenerator {
  Flower flower
  int length
  int width
  boolean isOrganic

  GardenGenerator(Flower flower, int length, int width, boolean isOrganic) {
    super()

    this.flower = flower
    this.length = length
    this.width = width
    this.isOrganic =isOrganic
  }

  Garden createGarden() {
    // ...blah whatever
  }
}

When I try to create this GardenGenerator instance like so:

GardenGenerator gg = new GardenGenerator(Flower.Daisy, 5, 10, true)

I get constructor-related issues on the Flower enum:

Caused by: groovy.lang.GroovyRuntimeException: Could not find matching constructor for: com.me.myapp.Flower(java.lang.String, java.lang.Integer, java.lang.Integer)

What do I need to do to Flower to fix this?