This evergreen perennial forms a mat of dark leaves against which its deep ruby-red flowers seem to glow; attracts bees and butterflies; drought tolerant once established.
Its deep ruby-red flowers seem to glow
Vivid in borders, rock and alpine gardens and as edging; excellent addition to water-wise gardens
Dianthus deltoides 'Flashing Light'
6" (15 cm)
16" (41 cm)
10" (25 cm)
June - August
Moderate-Low. Drought tolerant once established
Prefers an average, well-drained soil type
Plant Care Tips
Caring for your Dianthus is relatively easy. Their preference is for the sun's warmth and light: they don't like hot, humid summer conditions or shade, particularly in places where there is little air flow. Don't overcrowd your plants. Making sure that they are at the front of other plants also helps. Soil must be well-drained to get best results from your plants. They hate wet feet! If you take the time to prepare your soil first, you'll end up with healthy, happy, low-maintenance plants. Dianthus grows best in sandy or gravelly, well-aerated soil. Add coarse sand and dolomite to heavy soils. Also consider adding organic material, seaweed or horse manure to bulk up soil and help to maintain moisture and fertilize the plants. To help plants when they start blooming, you can also give them a liquid feed high in potassium, which helps form strong stems and buds and increasing blooming. Should you choose to mulch, don't choke the plant! Adding pumice will also ensure the proper soil aeration. To encourage continous blooming during the season, deadhead the plants regularly. Your Dianthus plants are not as long-lived as other perennials. They'll bloom best for two or three seasons.
Taking cuttings and starting new plants will ensure that you enjoy the fragrance and lovely silvery blue-green foliage for years to come.