Lavender requires full sun, well-drained soil, and low to moderate watering, thriving in dry, Mediterranean-like climates. Ecologically, it attracts pollinators like bees and butterflies while repelling harmful insects, making it an excellent companion plant. Medicinally, lavender is known for its calming properties, used to reduce anxiety and stress, aid sleep, and relieve skin irritations, while also offering anti-inflammatory and antimicrobial benefits.