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Turmeric

Common

Zingiberaceae

Spacing1 per sq ft
Days to Harvest270d
Expected Yield0.25-0.5 lb per container (PNW)

Turmeric

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Variety History

Turmeric (Curcuma longa) has been cultivated in India for at least 4,000 years. It is central to Ayurvedic medicine and South Asian cuisine. The bright orange pigment (curcumin) has been used as a dye, food colorant, and medicine across Asia for millennia.

Regional Context

Turmeric is even more challenging than ginger in the PNW. It needs a longer season and more heat. But fresh turmeric — bright orange, aromatic, less bitter than dried — is a gardening trophy. Grow in a container, start early, keep warm. Even a small harvest is worth the effort. The foliage is beautiful too — broad green leaves that make a striking tropical-looking houseplant.

Growing Technique

Start from fresh turmeric rhizomes (seed companies or Asian grocery stores). Select plump pieces with visible buds. Plant in a container at least 12" wide and deep with rich, well-drained potting mix. Plant 2" deep with buds facing up. Turmeric needs warmth — keep at 70-85°F. It is even slower than ginger: expect 4-6 weeks to sprout. Start indoors in February. Move outdoors June-September in partial shade. Water consistently but do not let soil get waterlogged. Bring indoors before frost. Harvest after 8-10 months when leaves yellow and die back. Dig up rhizomes, save a piece for replanting.

Watch For

  • Same temperature challenges as ginger — needs sustained heat. Long season required (8-10 months) strains PNW growing season. Overwatering in cool conditions causes rot. Harvest is small compared to tropical yields. Turmeric stains everything orange — wear gloves when handling fresh rhizomes.

Recipes