Dianthus is a genus of flowering plants that includes a wide variety of species and cultivars. Commonly referred to as pinks or carnations, Dianthus plants are popular in gardens and landscapes for their attractive, often fragrant flowers. Here are some general characteristics of Dianthus:

1. Flowers: Dianthus flowers are typically characterized by their five-petaled blooms with a fringed or serrated edge. The flowers are a neon pink color.

2. Fragrance: Many Dianthus varieties are known for their sweet and spicy fragrance, which adds to their appeal in gardens and floral arrangements.

3. Foliage: The leaves of Dianthus are usually slender and grass-like, and they may be bluish-green in color. The foliage forms neat clumps or mounds.

4. Growth Habit: Dianthus plants exhibit various growth habits depending on the species and cultivar. 'Neon Star' is a dense, clump forming variety.

5. Hardiness:'Neon Star' Dianthus is a perennial variety of dianthus. Hardy in zones 5-9.

6. Sunlight: Dianthus generally prefers full sun but can tolerate partial shade, depending on the specific cultivar. Adequate sunlight is essential for optimal flowering.

7. Soil and Watering: Dianthus plants thrive in well-drained soil. They prefer slightly alkaline to neutral soil conditions. Regular watering is necessary, but it's crucial to avoid waterlogged soil.

8. Versatility: Dianthus is versatile and can be used in various garden settings, including borders, rock gardens, and containers. Some shorter varieties are suitable for edging, while taller types can be used in mixed perennial beds.

Dianthus is a favorite among gardeners for its beauty, fragrance, and relatively easy care. Depending on the specific type, Dianthus can be grown in different climates and is often used to add color and charm to both formal and informal garden designs.