How to plant
When to plant
Plant Hedychium rhizomes in spring once the soil has warmed and frost has passed. In very mild climates, early autumn planting is also possible if the rhizomes have time to root before winter.
Where to plant
Choose a sunny or partially shaded spot in a warm, sheltered location. Hedychium thrives near south-facing walls, in tropical-style borders, or in large containers. Protection from cold winds encourages stronger growth and better flowering.
Preparing the soil
Loosen soil to 25–30 cm and enrich it generously with compost or well-rotted manure. Hedychium prefers fertile, moisture-retentive but well-drained soil. Improve clay with compost and fine bark; improve sandy soil with organic matter.
Preparing the rhizomes
Inspect rhizomes and trim any damaged parts. If they feel dry, soak them in lukewarm water for 1–2 hours to rehydrate. Look for visible growth points—these should face upward when planting.
Planting the rhizomes
Plant rhizomes 8–10 cm deep with the buds facing up. Space 40–60 cm apart, as plants grow large over time. Firm the soil and water well after planting.
After planting
Keep soil evenly moist during the establishment period. Apply a mulch of compost to help retain moisture and provide slow-release nutrients.
During growth
Water regularly in summer, as Hedychium dislikes drought. Feed monthly with a balanced fertilizer during the growing season. Remove spent flowers and tidy older leaves to keep plants fresh.
After flowering
Cut back flower stems after blooming. In mild climates, leave foliage in place until frost blackens it, then trim back. In colder climates, cut stems low and apply a thick mulch (10–15 cm) to protect rhizomes over winter.
Extra tips
Hedychium bring a tropical look to any garden and perform very well in large containers. In cold regions, pots can be moved to frost-free areas for winter. Plants mature over several seasons—older clumps produce the best displays. Divide clumps in spring every 3–5 years if they become congested.
