No interactions present.
I thought it was a tiny grass!
It is quite small (25cm) but many of the wild species of gladiolus are small.
I think it is a gladiolus due to the shape of the buds and the sheathing 'iris-type' leaves but I could be wrong.
Lat/Lng: 51.4744, -0.2953
OS grid ref: TQ184764
In glasshouse at Royal Botanic Gardens Kew.