If you want height, EASY care, azure blue flowers and masses of bees and butterflies....this is the plant.

Fabulous massed in a border and seems as much at home in a tropical setting as it does in a cottage garden.
I believe it is Salvia Ulignosa.
Grows to at least 1.5m is easily divided and will form a good sized clump in the first year, and can be cut back as hard as you like.

It likes water and good drainage.

You are bidding for three healthy plants.
They will sent bare rooted (some soil) and cutback.

They will be carefully wrapped in damp paper for the courier. Just plant as soon as possible after arrival.