With an abundance of bright flowers topping attractive foliage, dianthus holds a special spot in many gardeners’ hearts. It’s also drought-tolerant and forgiving about soil—actually preferring lean, sandy soil as long as it’s not waterlogged or acidic. Available in perennial and sometimes annual form, dianthus deals well with heat as long as temperatures are not overly humid.
Good companions include perennial geranium, coralbells (Heuchera), iris, and salvia.
Plant Type: Perennial
Zones: 4 - 8
Height: 2–15 in
Width: 2–15 in
Light Exposure: Full Sun, Partial Sun
Bloom Color: Pink, Purple, Red, White, Yellow
Bloom Time: Early Summer, Mid Summer
Special Features: Deer Resistant, Drought Tolerant, Fragrant Flowers, Low Maintenance, Pest Tolerant
Uses: Container Plant, Cut Flowers, Groundcover, Slope/Erosion
Dianthus grows well in lean, well-drained soil; avoid wet or acidic soil with a pH under 6. Fertilize during the growing season to encourage reblooming. Deadhead regularly. Divide before new growth appears in spring every 2 to 3 years.