The joke is on me

A “friend” kindly gave me some seed of so say “Frosted Explosion” grass (panicum elegans).
Even though I have it self sowing all around the place, I thought I’d sow it under cover and get a head start on the garden ones.
Hmmmmm! Frosted explosion my bum!!!
Anyone recognise it please???

Some sort of grass I don't "do" grasses!

Millet - it could be any colour.... also called setaria