Hedychium gardnerianum: The Fragrant Kahili Ginger

The Majestic Ginger Lily

Hedychium gardnerianum, known as Kahili Ginger or Ker-Gawl, is a spectacular flowering ginger native to the Himalayas. Its towering fragrant flower spikes and lush tropical foliage make it a prize in warm-climate gardens and conservatories.

Botanical Profile

Towering Fragrant Spikes

This rhizomatous perennial grows 6-8 feet tall with large, lanceolate, glossy green leaves arranged in two ranks on sturdy stems. In late summer to fall, it produces terminal spikes 12-18 inches long densely packed with butterfly-like flowers: pale yellow with prominent, elongated red stamens, intensely fragrant (sweet, spicy, honeysuckle-like). The fragrance carries far on warm evenings.

Kahili Ginger thrives in partial shade with rich, moisture-retentive, well-draining soil. It's a heavy feeder and water user during growth. Hardy in zones 8-10 with winter mulch; in colder zones, lift rhizomes or grow in large containers. The foliage dies back in winter.

Invasive Caution & Garden Glory

Important: In Hawaii, New Zealand, and other mild, wet climates, it's a serious invasive species—spreading aggressively by seed and rhizomes. Check local regulations before planting. Where not invasive, it's a magnificent specimen for tropical borders, water gardens, and fragrance gardens. The cut flowers are spectacular in arrangements.