Dianella haematica (Swamp Dianella)

How to grow Dianella haematica (Swamp Dianella) in NZ

To grow Dianella haematica (Swamp Dianella) in NZ, choose a sunny to partially shaded site with moist, free draining soil. As its common name suggests, it thrives in damp areas such as stream margins and wet soils but also adapts well to average garden conditions. Water regularly when young to establish strong roots, then only in prolonged dry spells. Dianella haematica is hardy, frost tolerant, and reliable across most NZ climates.

Dianella haematica (Swamp Dianella) care tips

Caring for Dianella haematica (Swamp Dianella) is simple and requires little effort. Remove old or damaged leaves to keep clumps looking tidy. Mulching around the base helps retain soil moisture and suppress weeds. Water during hot, dry periods to keep the plant vigorous. Dianella haematica is naturally resistant to most pests and diseases, making it a low maintenance choice for both home gardens and larger landscaping projects.

Dianella haematica (Swamp Dianella) size, spacing, and growth rate

Dianella haematica (Swamp Dianella) typically grows 40–70 cm tall and about 40–60 cm wide, forming neat clumps of strappy foliage. When mass planting, space plants 40–50 cm apart to allow for coverage. Growth is moderate, with plants establishing steadily in well prepared soil. Its manageable size makes Dianella haematica suitable for both small and large gardens where year round texture and seasonal flowers are desired.

Landscaping uses for Dianella haematica (Swamp Dianella)

Dianella haematica (Swamp Dianella) is ideal for borders, damp garden areas, and native plantings. It performs well along pond edges, stream margins, and in rain gardens, where it helps stabilise soil while adding colour and movement. Its summer flowers and decorative berries bring seasonal highlights. Dianella haematica also pairs beautifully with other NZ natives, making it a versatile option for naturalistic landscapes and low maintenance plantings.

Why buy Dianella haematica (Swamp Dianella) from The Plant Company?

Purchasing Dianella haematica (Swamp Dianella) from The Plant Company ensures you receive strong, healthy plants grown under NZ conditions. As New Zealand’s most trusted plant nursery, we pride ourselves on providing only premium quality plants. Each Dianella haematica is carefully nurtured and packaged to arrive safely. With expert advice and fast nationwide delivery, The Plant Company is your best choice for adding Swamp Dianella to your home, garden, or landscape project.