At this time of year it's always the Hibiscus, (that thing is a Bee magnet, shame we only have room for one) followed by Fuchsias.
Regarding Bees not seeing red @Fire I remember reading a few years ago that the reason red flowers can still be very attractive to bees (like Poppies and Roses) is that many flowers, including red ones, actually have invisible (to humans) shades of colour in them which bees can see.
I sowed seeds of some of those plants in my greenhouse, most are now growing as healthy seedlings and I need to crack on with turning part of my lawn into a new boarder to plant them in.
Posts
Regarding Bees not seeing red @Fire I remember reading a few years ago that the reason red flowers can still be very attractive to bees (like Poppies and Roses) is that many flowers, including red ones, actually have invisible (to humans) shades of colour in them which bees can see.
Quick search brought up this, quite interesting: https://www.beeculture.com/bees-see-matters/
I think this bee knows which flower it likes best!