(='Polbress') This terrific British selection forms a lush mound of deep green, ferny foliage, which takes on dark purple tones in spring and fall. Heads of star-shaped rich blue flowers are held above on burgundy stems in early summer. The compact size makes this suitable for edging, rock gardens and containers. Evergreen in mild winter regions. Remove faded flower heads to prevent self-sown seedlings from appearing. Best with protection from hot afternoon sun, particularly in warm summer regions. USPP#15367: unlicensed propagation prohibited.