Lavender (Lavandula) is a genus of aromatic perennial plants known for its fragrant flowers and gray-green foliage. These plants are popular in gardens, landscapes, and for various culinary and aromatic uses. Here are some key features and care tips for lavender:

1. Fragrance: Lavender is prized for its distinctive and pleasant fragrance. The essential oils in the flowers give off a soothing and aromatic scent that is widely used in perfumes, sachets, and aromatherapy.

2. Flowers: Lavender flowers are small and tubular, arranged in spikes at the end of long stems. The flowers come in various colors, including shades of purple, lavender, blue, pink, and white, depending on the lavender species or cultivar.

3. Foliage: Lavender plants have narrow, linear leaves that are often gray-green in color. The foliage is typically aromatic, contributing to the overall scent of the plant.

4. Growth Habit: Lavender plants vary in size and growth habit. Some are compact and bushy, while others have a more open and spreading form. Lavender can be used as edging plants, in borders, or as part of herb gardens.

5. Sunlight Requirements: Lavender thrives in full sun. It requires at least 6 hours of direct sunlight each day for optimal growth and flowering. Insufficient sunlight may result in leggy growth and reduced flowering.

6. Soil and Drainage: Lavender prefers well-draining soil with a slightly alkaline to neutral pH. Good drainage is crucial to prevent waterlogged conditions, which can lead to root rot.

7. Watering: Lavender is drought-tolerant once established. Watering should be done sparingly, allowing the soil to dry out between waterings. Overwatering can be detrimental to lavender plants.

8. Pruning: Regular pruning helps maintain the shape of lavender plants and encourages bushier growth. Pruning is often done in early spring or late summer after flowering. Cut back about one-third of the plant, avoiding cutting into old wood.

9. Hardiness: Lavender is generally hardy, and different species have varying hardiness levels. English Lavender (Lavandula angustifolia) is often considered the hardiest.

10. Landscape Use: Lavender is versatile and can be used in various landscaping settings. It's commonly used in herb gardens, rock gardens, as a border plant, or in containers. Lavender is also popular for creating aromatic hedges.

11. Culinary Uses: Some lavender varieties, particularly English Lavender, are used in culinary applications. The flowers and leaves can be used to flavor dishes, desserts, teas, and infusions.

Common lavender varieties include Lavandula angustifolia (English Lavender), Lavandula stoechas (Spanish Lavender), and Lavandula x intermedia (Lavandin). Lavender is known not only for its beauty and fragrance but also for its versatility and various uses in different aspects of daily life.