Carex glauca (Blue Sedge)

How to grow Carex glauca (Blue Sedge) in NZ

Carex glauca (Blue Sedge) grows best in full sun to partial shade and performs well across most NZ regions. Plant into free draining soil, though it will tolerate heavier soils provided drainage is reasonable. Choose a position with good airflow and room for the clump to develop. Water regularly during establishment, then reduce once settled. This sedge tolerates frost, coastal exposure, and cool conditions.

Carex glauca (Blue Sedge) care tips

Carex glauca (Blue Sedge) is very low maintenance once established. Water during extended dry periods, particularly in the first growing season. Old or untidy foliage can be trimmed back in late winter or early spring to refresh the plant and encourage new growth. Feeding is rarely required, though a light application of general fertiliser in spring can support healthy colour and vigour.

Carex glauca (Blue Sedge) size, spacing, and growth rate

Carex glauca (Blue Sedge) typically grows to around 30 to 40 cm tall and approximately 40 to 50 cm wide. It has a moderate growth rate and forms neat spreading clumps over time. Space plants about 40 to 50 cm apart for mass planting or border use. Its compact size makes it suitable for smaller gardens and containers.

Landscaping uses for Carex glauca (Blue Sedge)

Carex glauca (Blue Sedge) is ideal for adding cool toned colour and texture to NZ landscapes. It works well in borders, mass plantings, rock gardens, and alongside pathways. The blue foliage contrasts beautifully with green shrubs and flowering plants. This variety is commonly used in contemporary gardens, commercial landscapes, and low maintenance designs.

Why buy Carex glauca (Blue Sedge) from The Plant Company?

The Plant Company is NZ’s most trusted plant nursery, supplying premium plants grown for local conditions. Our Carex glauca (Blue Sedge) plants are selected for health, uniform growth, and strong foliage colour. We offer expert growing advice, fast nationwide delivery, and plants that establish quickly. Buying from The Plant Company ensures confidence, quality, and professional support.