Unlike plumbing or electrical work, landscaping in New Zealand is not a legally licensed trade — meaning there's no single mandatory qualification required to call yourself a landscaper. That said, reputable professionals do hold recognised qualifications, industry memberships, and specialist skills that set them apart. Knowing what to look for helps you hire with confidence and protect your investment.
Is Landscaping a Licensed Trade in NZ?
No. There is no government-issued licence required to operate as a landscaper in New Zealand. However, this doesn't mean qualifications don't matter — it simply means the onus is on you as a homeowner to ask the right questions. A well-qualified landscaper will be happy to show you their credentials.
Where landscaping work overlaps with restricted trades — such as installing irrigation connected to the mains water supply, building retaining walls over a certain height, or installing outdoor lighting — those specific elements must be carried out by appropriately licensed tradespeople. More on that below.
Recognised Landscaping Qualifications in NZ
The main formal qualification pathway in New Zealand is through the New Zealand Certificate in Horticulture (Landscaping), offered at Levels 3 and 4 through providers such as polytechnics and industry training organisations. This covers plant knowledge, design principles, construction techniques, and site management.
At a higher level, a Bachelor of Landscape Architecture (offered at universities including Unitec and Lincoln University) trains professionals in design, planning, and environmental management. Graduates may work on large-scale residential, commercial, or public projects.
Key qualifications to ask about include:
- NZ Certificate in Horticulture (Landscaping) Level 3 or 4 — practical, trade-focused
- NZ Diploma in Horticulture — broader horticultural knowledge
- Bachelor of Landscape Architecture (BLA) — design and planning focused
- Registered Landscape Architect (NZILA) — the peak professional credential (see below)
The New Zealand Institute of Landscape Architects (NZILA)
The New Zealand Institute of Landscape Architects (NZILA) is the professional body for landscape architects in NZ. Members who hold the title Registered Landscape Architect have met rigorous education and experience requirements and are bound by a professional code of ethics. For complex design projects — large gardens, subdivisions, public spaces — hiring an NZILA-registered professional gives you an extra layer of assurance.
For general landscaping and garden construction work, NZILA registration isn't always necessary, but it's a strong signal of expertise.
Horticultural Industry Memberships
Horticulture New Zealand and Nursery and Garden Industry New Zealand (NZNGA) both have member landscapers who agree to industry standards. While membership alone doesn't guarantee quality, it shows a commitment to the profession and ongoing development.
Ask any landscaper you're considering:
- What formal qualifications do you hold?
- Are you a member of any industry body?
- Can you provide references from similar projects?
- Do you carry public liability insurance?
When Restricted Work Is Involved
Some landscaping tasks touch on work that is legally restricted to licensed tradespeople under New Zealand law:
- Irrigation connected to mains water supply — any connection to the potable water supply is restricted plumbing work and must be carried out by a licensed plumber. Check the Plumbers Gasfitters & Drainlayers Board for licensed practitioners.
- Outdoor electrical work — installing garden lighting connected to mains power, outdoor power points, or pond pumps wired to the mains is restricted electrical work. Only a registered electrician can do this. See the Electrical Workers Registration Board to verify a sparky's registration.
- Retaining walls — walls over 1.5 metres in height (or in certain ground conditions) typically require a building consent from your local council. Work on consented structures may need to be carried out or supervised by a Licensed Building Practitioner (LBP). Always check with your council before starting.
- Drainage — connecting to stormwater or wastewater systems is restricted drainlaying work.
For guidance on what requires consent, MBIE Building Performance is the authoritative source, and your local council can confirm what applies to your specific site.
What a Good Landscaper Should Know
Beyond formal qualifications, a skilled NZ landscaper should demonstrate:
| Area | What to expect |
|---|---|
| Plant knowledge | Understanding of NZ-appropriate species, soil types, and climate zones |
| Construction skills | Paving, decking, retaining walls, drainage, irrigation |
| Design ability | Reading and producing plans, understanding proportion and flow |
| Health & safety | Awareness of WorkSafe NZ requirements on site |
| Product knowledge | Familiarity with quality materials and suppliers |
| NZ Building Code | Basic understanding of relevant sections (E1 surface water, B1 structure) |
Healthy Homes and Outdoor Spaces
If you're a landlord, note that outdoor drainage and surface water management can relate to Healthy Homes Standards. A knowledgeable landscaper will understand how outdoor work can affect moisture and drainage around a rental property.
When to Call a Professional
You should always engage a qualified landscaper (and relevant licensed tradespeople) when:
- Your project involves retaining walls, significant earthworks, or drainage
- You need mains-connected irrigation or outdoor electrical work
- Your property has steep slopes, unstable ground, or is near waterways
- The project requires a building consent — your council will advise
- You want a design-led project with plans and specifications
For smaller jobs like garden tidying, planting, or lawn care, a less formally qualified gardener may be perfectly suitable — but always check their experience and ask for references.
You can find qualified local landscapers in your area right here on tradedirectory.co.nz.
Licensed Building Practitioner (LBP)
