Hierochloe redolens (Sweet-Scented Grass, Kāretu)

Growing Hierochloe redolens Successfully in NZ

Hierochloe redolens, commonly known as Kāretu or Sweet-scented Grass, is a fragrant New Zealand native ideal for cultural gardens, naturalistic landscapes, and damp sites. It thrives in full sun to light shade and prefers moist, fertile, free-draining soils. Kāretu spreads slowly via rhizomes, forming low clumps of arching, bright green leaves with a sweet, vanilla-like scent. Plant it in areas with consistent moisture and shelter from harsh wind for best results. It is well-suited to wetland margins and traditional Māori planting projects.

Hierochloe redolens Care Tips

Plant Hierochloe redolens (Kāretu) in full sun to light shade with moist, well-drained soil. It prefers consistent moisture, so avoid letting the soil dry out completely, especially in summer. Mulching helps retain soil moisture and suppresses weeds. Trim back old foliage in late winter to encourage fresh spring growth. Avoid overly dry or compacted soils, and protect from strong winds. Kāretu is low-maintenance and generally free from pests and diseases.

Plant Size and Spacing

Hierochloe redolens typically grows to a height of about 30–40 cm and a width of 40–50 cm, forming soft, arching clumps. For best results, space plants approximately 40–50 cm apart. This allows room for gradual spreading via rhizomes. It’s ideal for mass planting in damp areas, cultural gardens, and alongside water features or wetland edges.

Why Buy Hierochloe redolens from The Plant Company

The Plant Company supplies premium Hierochloe redolens (Kāretu) plants that are nursery-grown for strength and reliability in NZ conditions. Our plants are ideal for cultural projects, damp garden areas, and wetland restoration. We offer eco-sourced stock where possible, expert advice, and fast, nationwide delivery. When you buy from The Plant Company, you’re choosing trusted quality, native expertise, and the support needed to grow this fragrant and culturally significant grass successfully.