Why Native Plants Make Sense in Christchurch

Canterbury's climate isn't easy. Hot, dry summers. Nor'westers that strip moisture out of anything shallow-rooted. Frosts in winter. A lot of exotic ornamentals struggle here, they need constant irrigation, mulching, and attention that a busy household can't always give.

Native plants evolved for exactly these conditions. Once established, most need very little water, cope with the nor'wester, handle frost, and attract the birds and insects that keep a garden healthy. They're also increasingly available through local nurseries at reasonable prices.

Here are the ten we plant most often at Ecocare.

1. Kowhai (Sophora microphylla)

The most recognisable native flowering tree in Canterbury. Drops its leaves briefly in late winter, then explodes into hanging clusters of yellow flowers that tūī can't resist. Grows to 5–8 metres in a garden setting. Tolerates dry spells once established. Best in a spot with full sun.

2. Harakeke / New Zealand Flax (Phormium tenax)

The workhorse of the native garden. Dramatic, architectural, low maintenance. The straight species grows large, up to 2 metres, but there are dozens of cultivars in compact sizes and colours from deep burgundy to bronze-green. Tōtara and bellbirds use the flowers. Near-indestructible once in the ground.

3. Kānuka (Kunzea ericoides)

Often confused with mānuka, kānuka is faster growing and more tree-like. Excellent as a windbreak or shelter belt in exposed Canterbury sections. Masses of tiny white flowers in summer, good for bees. Will establish in poor soil where little else will.

4. Mānuka (Leptospermum scoparium)

The classic. Flowers from late winter through spring: white, pink, or deep red depending on cultivar. Excellent for honey bees. Shorter-lived than kānuka (10–15 years) but a great pioneer species that conditions the soil for others. Plant it where you want a garden to begin.

5. Tī Kōuka / Cabbage Tree (Cordyline australis)

A statement plant. Iconic silhouette, extremely hardy, tolerates wet and dry. Grows fast in Canterbury conditions. Flowers scent the air in early summer and attract silvereyes. Works well as a specimen tree in a lawn or as a repeating element along a path or fence line.

6. Coprosma

There are over 50 species. For Canterbury gardens, we most often use Coprosma repens (mirror plant) for hedging and ground cover, and the bronze and gold-leafed cultivars as feature plants in mixed beds. Hardy, low water, and the berries feed birds through winter.

7. Hebes

Canterbury's most useful native shrub in terms of variety. From ground-hugging Hebe pinguifolia 'Pagei' to the large-leafed tree hebes that approach 2 metres. Flowers range from white to deep purple. Most hebes handle Christchurch summers well with minimal irrigation once established.

8. Pōhutukawa (Metrosideros excelsa)

Technically a coastal North Island native, pōhutukawa has naturalised beautifully in Christchurch conditions, especially in sheltered spots or near the coast. Crimson flowers in December make it one of the most striking trees you can plant. Slow to establish but long-lived.

9. Corokia (Corokia cotoneaster)

The wire-netting bush. Unusual tangled branch structure, tiny yellow flowers, and orange or red berries that persist well into winter. Extremely drought-tolerant once established: one of the few plants that actually looks better in dry years. Works as a specimen or low informal hedge.

10. Rengarenga / Rock Lily (Arthropodium cirratum)

An underused native that should be in every Christchurch garden. Strappy leaves and delicate white flowers in summer. Thrives in dry shade, the corner of the garden under a tree where nothing else will grow. Complements flax and harakeke in mixed plantings.

A Note on Establishment

Most native failures happen in the first summer. The plant needs water every few days for the first 6–8 weeks after planting, then weekly through its first dry season. After that, the root system is usually deep enough to find its own moisture. We use a heavy mulch layer (100mm of wood chip) to hold moisture and suppress weeds during establishment.

If you want help choosing plants for a specific spot (shaded, exposed, wet, dry), get in touch. We can advise and supply through our plant network or work with what's available locally.