This plant is one of the "Red Arrow" ones. I think this is perhaps the best variety I have ever grown. It produces loads of big, dark purple spears.
This is a different plant of the same variety.
Here's a zoomed version of one of the spears seen in the previous photo, glistening in the sunshine and covered in tiny raindrops.
It's not only the flowering spears of the broccoli that are attractive; the leaves are good too (to look at, I mean, not to eat). Look at the line of little drops of moisture along the edge of this one - almost like tiny beads. This photo has been rotated for artistic effect by the way, and the big raindrops are not actually defying the laws of gravity.
In the kitchen... Spears of Red Arrow at the left, and paler spears of Rudolph at the right.