Dianthus 'Neon Star' sports star-shaped, neon magenta blooms from late spring well into summer. After flowers fade, you're left with attractive, grey-green bunches of grass-like foliage. Mass Dianthus 'Neon Star' along a hillside or sunny fence line to light up the neighborhood. This little beauty can be tucked away just about anywhere and is generally trouble-free after establishment. But should you take the time to deadhead spent blooms, it will likely reward you with another round of neon radiance in autumn.