Pimelea prostrata hero image

Strathmore Weed

Pimelea prostrata

Not Threatened

Introduction

Introduction Overview

Pimelea prostrata is a low, mat-forming coastal and alpine shrub with small leaves, white flowers and often white berries. It’s excellent for rock gardens, coastal plantings and erosion control on banks in sunny, free-draining sites. native shrubs

Pimelea prostrata mat-forming habit with white flowers

Image credit: Strathmore Weed (Pimelea prostrata). Wikipedia

Quick Facts

Quick Facts Overview

Scientific NamePimelea prostrata
Height5–15 cm
Spread50–100+ cm, mat-forming
Water NeedsLow once established
LightFull sun to light shade
Frost ToleranceHigh
Salt ToleranceGood (coastal tolerant)
Growth RateModerate
LifespanLong-lived groundcover

Climate Best Suited to

Adaptable from coastal sands to alpine screes; prefers free-draining soils and good light.

Regional Suitability

CityClimate Suitability
WhangāreiIdeal
AucklandIdeal
HamiltonIdeal
TaurangaIdeal
RotoruaIdeal
GisborneIdeal
New PlymouthIdeal
NapierIdeal
WhanganuiIdeal
Palmerston NorthIdeal
WellingtonIdeal
NelsonIdeal
ChristchurchIdeal
DunedinIdeal
InvercargillIdeal

Growing Requirements

Soil Requirements

Free-draining, sandy or gravelly soils; avoid waterlogging.

Light Requirements

Full sun for compact habit; light shade tolerated.

Water Requirements

Low once established; moderate during establishment.

Uses & Significance

Garden Uses

  • Rock gardens and coastal plantings
  • Mat-forming groundcover for banks

Ecological Value

  • Stabilises soil and provides habitat for invertebrates

Seasonal Care Calendar

Spring

  • Light tidy after flowering if needed

Summer

  • Water new plants in drought

Autumn

  • Plant and mulch

Winter

  • Minimal care; ensure drainage

When to Prune and How Much

When to Prune and How Much Overview

Strathmore Weed (Pimelea prostrata) is a naturally low-maintenance plant that generally requires minimal pruning. If desired, a light trim can be performed after flowering to maintain its tidy mat-forming shape and encourage denser growth. It is also beneficial to remove any dead, diseased, or damaged stems to improve air circulation and light penetration within the plant. Avoid heavy pruning, as this can stress the plant and detract from its natural prostrate form. Early spring, before new growth begins, is also an ideal time for light pruning to promote a healthy structure.

Planting Guide

When to Plant

Autumn or spring; ensure free drainage.

Site Selection

  • Full sun to light shade
  • Sandy or gravelly soils preferred

Planting Procedure

  1. Dig shallow, wide hole; plant at nursery depth
  2. Backfill and water in; mulch lightly

Propagation Methods

From Seed

  1. Collect ripe fruit; clean and sow fresh seed

From Cuttings

  1. Take semi-hardwood cuttings in late summer; root in free-draining mix

Cultural Notes

Cultural Notes Overview

Variable species with several forms; widely distributed from coast to alpine in Aotearoa.

This section provides important information about plant care and cultivation practices. Understanding these aspects helps ensure successful growth and development in garden conditions.

Pests & Diseases

Pests & Diseases Overview

  • Root rots: avoid waterlogging

This section provides important information about plant care and cultivation practices. Understanding these aspects helps ensure successful growth and development in garden conditions.

Bonus Tip

Bonus Tip Overview

Use as a living mulch among rocks and stepping stones in sunny, free-draining spots.

This section provides important information about plant care and cultivation practices. Understanding these aspects helps ensure successful growth and development in garden conditions.

Cultural Significance

Cultural Significance Overview

Learn more in Cultural Plants.

Planting Section

Details

This section provides important information about plant care and cultivation practices. Understanding these aspects helps ensure successful growth and development in garden conditions.

Requirements Section

Requirements Section Overview

This section provides important information about plant care and cultivation practices. Understanding these aspects helps ensure successful growth and development in garden conditions.

Care Maintenance Section

Care Maintenance Section Overview

This section provides important information about plant care and cultivation practices. Understanding these aspects helps ensure successful growth and development in garden conditions.

Plant Description

Physical Characteristics

This section provides important information about plant care and cultivation practices. Understanding these aspects helps ensure successful growth and development in garden conditions.

Ecological Role

Environmental Impact

New Zealand daphne plays important ecological roles in specialized habitats throughout New Zealand, providing food resources for native insects through its small flowers and contributing to the distinctive plant communities that characterize various ecosystems from coastal to montane environments. The plant's specialized growth form and habitat requirements make it important for maintaining ecosystem diversity, while its relationships with native pollinators and other organisms contribute to the complex ecological networks that sustain native biodiversity.

Landscaping Section

Landscaping Section Overview

This section provides important information about plant care and cultivation practices. Understanding these aspects helps ensure successful growth and development in garden conditions.

Growing Requirements Section

Growing Requirements Section Overview

This section provides important information about plant care and cultivation practices. Understanding these aspects helps ensure successful growth and development in garden conditions.

Plant Conservation

Plant Conservation Overview

New Zealand daphne faces conservation challenges from habitat modification, trampling by recreational users, and competition from invasive weeds that can impact its specialized habitat requirements. The species' specific environmental needs and often limited local distributions make it vulnerable to environmental changes and human impacts. Conservation efforts focus on protecting specialized habitats, managing recreational impacts, controlling invasive species, and maintaining the specific environmental conditions essential for this distinctive native shrub's survival in its various natural habitats.

Cultural Section

Cultural Section Overview

This plant has cultural associations in Aotearoa and is valued in restoration and gardens for ecological services; use eco‑sourced stock near natural areas.

New Zealand daphne was recognized by Māori for its distinctive appearance and its role in specific coastal and montane environments, occasionally used for traditional purposes and valued as an indicator of specific environmental conditions in traditional ecological knowledge. The plant's unique growth form and specialized habitat requirements made it recognizable among native shrubs, while its presence indicated specific soil and climatic conditions. The species continues to hold cultural interest as one of New Zealand's distinctive native shrubs and represents the remarkable adaptability of native plants to diverse environments.

Plant Ecology

Plant Ecology Overview

This section provides important information about plant care and cultivation practices. Understanding these aspects helps ensure successful growth and development in garden conditions.

Plant Habitat

Plant Habitat Overview

This section provides important information about plant care and cultivation practices. Understanding these aspects helps ensure successful growth and development in garden conditions.