Flashing Lights Cheddar Pinks

Dianthus deltoides 'Flashing Lights' forms a low evergreen mat of narrow green leaves and produces single ruby-red flowers with a darker center ring. The compact habit suits rock gardens, border edges, and small groundcover plantings where the soil drains freely. ### Seasonal interest Flowers appear from late spring into summer. The red blooms rise just above the foliage and can attract bees and butterflies. The mature plant is generally about 6–8 inches tall; allow room for a spreading mat, with exact published spread estimates varying by source. ### Siting and care Plant in full sun for the strongest flowering. It tolerates some afternoon shade in hot climates, but heavy shade reduces bloom. Use well-drained soil and avoid persistently wet crowns. The [RHS profile](https://www.rhs.org.uk/plants/223199/dianthus-flashing-lights/details) lists 'Flashing Light' as a synonym for 'Flashing Lights'; [Parrans Greenhouse](https://www.parransgreenhouse.com/dianthus-maiden-pinks-deltoides-flashing-light-p/dianthusmaidenpinks.htm) gives a compact 6–8 inch height and notes its use in borders and rock gardens. ## Maintenance Deadhead after the main flush to prolong flowering, or trim the mat after bloom for a neater edge. Divide in spring or fall if the center becomes sparse.