Eryngium x zabelli ‘Pen Blue’

‘Pen Blue’ Sea Holly carries branching heads of striking flowers, metallic blue thimbles surrounded by an intricate metallic blue ruff, on strong 60cm stems. Flowering from late spring until autumn it is best grown in a sunny spot. It needs a good 25cm soil depth to flourish and is fairly drought hardy when once established. Will grow 60-cm tall by 50cm wide.