Botanical Gardens Birmingham unknown plant

Botanical Gardens Birmingham unknown plant

Observation - Botanical Gardens Birmingham unknown plant - UK and Ireland. Description: Noticed this plant in the Botanical Gardens yesterday - it was alive with bees! It was in the 'trials' area but had no label on it.

Noticed this plant in the Botanical Gardens yesterday - it was alive with bees!
It was in the 'trials' area but had no label on it.