White Turmeric (Curcuma zedoaria) is a rare, aromatic rhizome plant valued for its stunning tropical foliage, vigorous growth, and distinctive pale-yellow roots with a warm, camphor-like fragrance. Thriving in warm, humid conditions, it performs exceptionally well in sheltered Gisborne microclimates or inside a hot house. With its lush, broad leaves and strong seasonal cycle, White Turmeric brings both ornamental beauty and abundant rhizome production, making it a rewarding addition to subtropical gardens, edible landscapes, and permaculture systems.

Key Features
Produces fragrant, pale-yellow rhizomes with a peppery, floral aroma
Fast-growing tropical plant with lush, broad, banana-like foliage
Excellent for subtropical edible gardens, hot houses, or sheltered outdoor spots
Forms healthy clumps that return yearly once established
Striking pink and white cone-like flowers appear in warm conditions
Naturally pest-resistant and easy to grow in rich, moist soil
 
Growing Tips
Plant in rich, well-draining soil with plenty of organic matter
Prefers full morning sun and afternoon shade, or bright filtered light in a hot house
Mulch heavily to support moisture retention and strong rhizome development
Keep soil evenly moist during the growing season (spring–autumn)
Allow the plant to die back naturally in winter as part of its normal cycle
Protect from frost when young; established clumps tolerate light frost with mulch
Performs best in warm microclimates—north-facing walls, sheltered courtyards, or inside a greenhouse
 
Care Instructions
Watering:
Water regularly during spring and summer, keeping soil lightly moist but never waterlogged. Reduce watering in autumn, and allow soil to dry almost completely during winter dormancy.
Feeding:
Apply compost, aged manure, or worm castings in spring. Liquid feed every 4–6 weeks through the warm season to support rhizome development.
Mulching:
Use thick mulch (woodchips, straw, or compost) to protect the shallow rhizomes and retain moisture.
Seasonal Cycle:
Leaves will naturally die back in late autumn. Do not disturb the clump—this is normal. Growth resumes in spring as soil warms.
Frost Protection:
In cooler areas or hard winters, cover the root zone with a heavy mulch layer or grow indoors/hot house for added protection.