Phormium 'Platts Black' Flax 3Ltr PotPerhaps among the darkest foliage of all phormium. Shrub, Plants for Sun, Specimen plants Position: Full sun Eventual Soze: 1. 5m ORL Phormium 'Platts Black' is a grass like perennial with certain exotic appeal. The foliage fans out from the base of the plant and creates a good amount of volume. Its considered relatively hardy despite its exotic appeal although frost protection wouldnt go amiss! This particular variety has perhaps among the darkest