Perennial of the Polemoniaceae family, this cultivar of Phlox subulata shares the North American origin of the species, naturally established on rocky outcrops and dry slopes of the eastern United States. 'Purple Beauty' is a well-documented cultivar, mentioned by the RHS and regularly present in European alpine plant collections.
It forms a spreading and generously filled cushion, 8 to 12 cm in height when in bloom, with a slightly domed and fairly ample habit. The persistent linear-subulate leaves, medium green, are borne on woody-based stems and give the plant a good appearance outside of flowering.
The flowers are a medium violet-lilac, distinctly colored without excessive saturation, with a small, orange to reddish-brown central eye, clearly visible upon close examination. A particularly observable feature is the variation in hue within the same cushion depending on sunlight and the age of the flowers, with the youngest tending towards a more intense violet while the fading flowers pale towards light lilac, creating a natural gradient effect on the entire plant.
In its natural habitat, the species blooms from April to June. In cultivation, 'Purple Beauty' generally blooms in April-May. It requires full sun, well-drained soil, and does not tolerate stagnant winter moisture.