def create_dictionary(filename):
    """Return a dictionary with the letter of the alphabet as the key and the name of the flower as the value for each row in flower.txt."""
    
    dict_flowers = {}
    
    with open(filename) as flowers:
        for line in flowers:
            letter, flower = line.strip().split(': ')
            dict_flowers[letter] = flower
            
    return dict_flowers