It turns out what I planted the other day isn’t Lavender but Victoria Blue Salvia.
Some friends came up with suggestions such as Indigo but the leaves were all wrong for Indigo. I finally searched for “purple flower spikes” and found the plant. That explains the lack of scent. There are auxiliary shoots in the leaf axils which will also produce flowers ending up with lots of purple spikes as the season advances.
The plants are looking happy in their new container homes. So the plant was a good choice.