Turmeric
Curcuma longa
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Quick Info
water
Regular watering, reduce before harvest
spacing
25 cm between plants, 40 cm between rows
depth
5-7 cm deep (rhizome pieces)
sun
Partial shade to filtered sunlight
season
Plant at start of wet season (Sept-Nov)
frost
Frost sensitive
height
60-100 cm
gemination
14-21 days (rhizome sprouting)
sprout to harvest
8-10 months
soil ph
5.5-6.5
soil type
Rich, loose, well-drained loamy soil
fertilizer needs
Moderate, rich organic matter essential
About
Turmeric is closely related to ginger and grown in a similar way in PNG. The bright orange-yellow rhizomes are used as a spice, food colouring, and traditional medicine. Turmeric grows well in lowland and mid-altitude areas with partial shade and is valued for its powerful anti-inflammatory compound curcumin.
Health Benefits
Contains curcumin, one of the most studied natural anti-inflammatory compounds. Strong antioxidant properties. Used traditionally for joint pain, digestive issues, skin conditions, and wound healing. Supports liver function.
Market Requirements
Fresh rhizomes should be firm and bright orange inside. Dried turmeric must be properly cured and dried. Powder should be fine, bright yellow-orange, and aromatic.