Marigold COUNTRY OF ORIGIN: USA COLORS: Red, Pink, Blue, White, Black Out of all the most common flowers in the US, roses will always win the number one spot, thorns down! This is due to the fact that it were these flowers that’ve been depicted the most in the popular culture of the last couple of centuries. Also, thanks to the diversity of colors, shapes and sizes – you’ll always be able to find the rose to perfectly match your (or someone else’s) liking!