This grower is fairly sure of this plant identification.
Crocosmia ‘Bressingham Blaze’ (Montbretia). ‘Bressingham Blaze’ is a larger flowered hybrid with bright orange-red blooms.
They are frost hardy and will require well drained soil with an open sunny site. In very cold areas, you should plant in a sheltered position or lift and store for the winter.
Ornamental, border, cutting bed, container
Italics = data drawn from parent genus or speciesView Full Plant Finder Record