14 Questions Roses are red: flower quiz Roses are red, and violets are blue, in this kahoot I challenge you! In time for Valentine 's day, test your flower knowledge in this quiz. KahootStudio, 02/05/2018 answers Play How many species of rose are known? under 50 60-70 80-100 100+ True or false: black roses exist. True False Some roses grow into a fruit. What is it called? berry hip cherry petal … and 11 more awesome questions! Check them out by clicking “Play”.