Something pretty and unknown - a heather perhaps?

Something pretty and unknown - a heather perhaps?

Observation - Something pretty and unknown - a heather perhaps? - UK and Ireland. Description: Note the long stem filled with tiny leaves and the abundance of flowers at the top (terminal flower spikes is what's it called I think).

Note the long stem filled with tiny leaves and the abundance of flowers at the top (terminal flower spikes is what's it called I think).