French Lavender, scientifically known as Lavandula stoechas, is a delightful and aromatic herb that is known for its beautiful purple flowers and soothing fragrance. Here are care instructions specifically tailored for French Lavender: 

1. Light: French Lavender thrives in full sun. Place it in a location where it can receive at least 6-8 hours of direct sunlight per day. A south-facing window or a sunny spot in your garden is ideal. Insufficient light can lead to leggy growth and fewer blooms.

2. Temperature: French Lavender prefers moderate temperatures between 60-85°F (15-30°C). It can tolerate higher temperatures but may struggle in extreme heat or cold. Protect it from frost and sudden temperature fluctuations.

3. Watering: Allow the soil to dry out slightly between waterings. French Lavender is drought-tolerant once established and prefers infrequent but deep watering. Water thoroughly when you do water, ensuring the soil drains well. Avoid overwatering, as lavender is susceptible to root rot.

4. Soil: Plant French Lavender in well-draining soil with good aeration. A sandy or loamy soil mixture works well. If planting in a container, use a pot with drainage holes to prevent water from pooling around the roots.

5. Fertilizing: French Lavender does not require much fertilization. You can feed it with a balanced, slow-release fertilizer once a year in early spring. Avoid over-fertilizing, as this can lead to excessive leaf growth at the expense of flowers.

6. Pruning: Regular pruning is essential to maintain the shape and promote bushy growth. Trim back spent flowers and prune lightly after flowering to encourage new growth and prevent the plant from becoming woody.

7. Mulching: Apply a thin layer of mulch around the base of the plant to help retain moisture and suppress weeds. Use gravel, bark chips, or another organic material that won't hold too much moisture around the plant.

8. Pests and Diseases: French Lavender is relatively resistant to pests and diseases. However, it can sometimes be affected by aphids or fungal diseases if conditions are too humid. Monitor regularly and treat any issues promptly with appropriate insecticides or fungicides.

9. Propagation: Propagate French Lavender from cuttings taken in spring or early summer. Select healthy, non-flowering stems and plant them in well-draining soil or a seed-starting mix. Keep the soil moist until roots develop.

10. Overwintering: In colder climates, French Lavender may need protection from frost. Mulch around the base of the plant in late fall to insulate the roots. If growing in containers, consider bringing them indoors or providing a sheltered location during winter.

By following these care instructions, you can enjoy growing and caring for your French Lavender, admired for its aromatic foliage and lovely purple flowers, whether planted indoors in pots or outdoors in your garden.