Pollinator pathways and flora plantings



CASE STUDIES //

A pollinator pathway with connected native flowering plantings supporting bees, butterflies, and other invertebrates across an urban neighbourhood in Aotearoa New Zealand.

Definition

Pollinator pathways and flora plantings are connected networks of flowering vegetation that provide continuous foraging and habitat resources for pollinators across urban environments.

What this strategy does
Creates linked planting corridors that support pollinator movement and persistence. Avoids isolated, single-species, or short-duration plantings.

Context
Urbanisation fragments habitat and limits pollinator movement; coordinated planting improves ecological connectivity and resilience in towns and cities.

Technical considerations

Design considerations

Plant selection and diversity

Prioritise locally appropriate native flowering plants to support native pollinators and established plant–pollinator relationships.

Use mixed plantings with non-invasive ornamentals only where needed to extend flowering periods; non-natives must supplement, not replace, natives.

Maximise plant species richness to support diverse pollinator communities and functional redundancy.

Spatial and habitat structure

Incorporate layered vegetation (groundcovers, herbaceous plants, shrubs, trees) to increase foraging and nesting opportunities.

Specify species with overlapping flowering times to maintain year-round resource availability.

Provide nesting and shelter features such as dead wood, and low-disturbance zones.

Implementation considerations

Management and performance
Reduce mowing frequency and avoid intensive maintenance regimes that remove flowers or nesting habitat.

Urban soils may have altered nutrients or compaction affecting plant establishment and long-term diversity.

Issues and barriers

Habitat fragmentation
High impervious surface cover reduces pollinator movement and disproportionately affects small-bodied and specialist species.

Planting trade-offs
Poorly selected non-native species can disrupt plant–pollinator networks or become invasive.

Competing land-use demands
Recreation, aesthetics, and maintenance expectations can limit floral density and habitat persistence.

Synergies and opportunities

Climate change
Pollinator plantings contribute to urban cooling, stormwater management, and ecosystem resilience.

Human wellbeing
Biodiverse, flowering landscapes improve mental health, social connection, and perceived environmental quality.

Food security
Diverse pollinator communities support urban food production and stabilise pollination services.

Financial case

Ecosystem services and performance value

Improved pollination services
Supports higher yields in urban agriculture and community gardens.

Cost-effectiveness
Perennial, biodiverse plantings reduce long-term maintenance, chemical inputs, and replacement costs.

Resilience benefits
Increased ecological resilience lowers costs associated with pest outbreaks and infrastructure stress.

Monitoring and evaluation metrics

Core metric
Pollinator abundance and species richness from repeat surveys.

Advanced or long-term metric
Plant–pollinator interaction network complexity and pollination success (e.g. fruit or seed set).

Case study

Hakanoa Reserve pollinator pathway

Additional resources or tools

Pollinator Pathmaker
Algorithmic tool for designing pollinator-supportive gardens.
https://pollinator.art/pathmaker