Garlic fields cover much of the flat land on both Lý Sơn islands - Đảo Lớn and Đảo Bé - grown in a soil composition found nowhere else in Vietnam: a mix of volcanic ash and white sand that gives the island's purple garlic its distinctive strong, slightly spicy flavour. Lý Sơn is known across Vietnam as 'Vương Quốc Tỏi' - the Kingdom of Garlic - and the crop is central to both the island's economy and its identity.
The fields are visible from almost everywhere on the island, including from the ferry pier on Đảo Bé where the green rows stretch into view as you dock. Garlic is planted in September and harvested in February and March; between planting and harvest, the fields move through distinct stages - young green shoots in November and December, full-grown rows in January and February, and the harvest bustle of March when dried garlic is spread to cure across rooftops, roads, and open ground across the island.