Agastache 'Sweet Lili' (Giant Hyssop) is a tough, long-flowering perennial known for its apricot-pink spikes, fragrant anise-lemon foliage, and drought tolerance, making it ideal for hot, dry gardens, attracting pollinators, and adding colour from summer to winter. It thrives in full sun, well-drained soil, and is versatile for beds, borders, and containers, requiring little maintenance beyond deadheading for more blooms and a winter prune.