Creamy Broccoli and Cucumber Salad

6 cups broccoli florets and chopped tender insides of broccoli stems (from about 3 broccoli crowns)

2 cups chopped cucumber (about 1-inch chunks)

½ cup diced red onion

½ cup raisins

½ cup sunflower seeds

1 cup mayonnaise (regular or light)

2 tablespoons white wine vinegar

1 garlic clove, minced (about 1 teaspoon)

1 tablespoon honey

1 teaspoon salt

additional salt and freshly ground pepper