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Missouri Botanical Garden PlantFinder lists Curcuma longa as winter hardy to USDA Zones 8-11, 3-4 feet tall and wide, full sun to part shade, water medium to wet, blooming pale yellow July to August; native range India and Malaysia.
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NC State Extension Gardener Plant Toolbox lists USDA hardiness zones 8a-11b, leaves to 40 inches long, sterile yellowish-white flower spikes 4-6 inches long, and propagation by rhizome division; it tolerates acid to neutral soils that stay moist to occasionally wet.
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Both sources report no serious insect or disease problems; red spider mites can occur on older plants or in soil that dries out, and young leaves may be browsed by slugs and snails (NC State Plant Toolbox).
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Plotwright Heat Tier Hot-Extreme per ADR 0021 — a tropical species of India and Malaysia that demands hot summers and high humidity and is winter-tender below USDA Zone 8.