Pūha (Sonchus oleraceus) leaves and flower

A Beginner’s Guide to Finding Free Food and Medicine

Aotearoa New Zealand’s landscape offers an incredible diversity of edible and medicinal plants—from native taonga like kawakawa to introduced “weeds” like dandelion and plantain. This guide will help you safely identify and use these plants, connecting you to the land while building practical skills.

The Golden Rule: If you’re not 100% certain of a plant’s identity, don’t use it. Misidentification can range from unpleasant to deadly.


It’s Free and Accessible Many powerful medicinal and nutritious plants grow as “weeds” in parks, gardens, and pathways. You don’t need money or special equipment to start—just knowledge and respect.

It Connects You to Place Foraging teaches you to see your environment differently. That “weed” on your street corner becomes medicine for bee stings. The “pest” in your lawn becomes a nutrient-dense green for your salad.

It’s Sustainable When done responsibly, foraging is one of the most sustainable ways to source herbs and food. You’re working with what nature provides, not demanding what industrial agriculture must produce.

It Builds Resilience Knowing which plants around you are edible and medicinal creates food security and healthcare independence. These skills have value in any era.

Cultural Context and Scope

This guide addresses foraging in Aotearoa New Zealand from a Western herbalism perspective.

Rongoā Māori and Traditional Gathering:
Rongoā Māori has its own traditional gathering practices, protocols (kawa), spiritual frameworks (karakia), and deep cultural relationships with native plants. Foraging in Aotearoa requires understanding and respecting these existing Indigenous practices and connections to whenua (land).

CRITICAL: NZ Native Plant Protocols New Zealand native plants have profound cultural significance:

  • Kawakawa, mānuka, horopito, harakeke, karamu and many others are taonga (treasures)
  • Traditional protocols (kawa) exist for gathering these plants
  • Spiritual practices (karakia) accompany traditional gathering
  • DO NOT harvest native plants without:
  • Understanding their cultural significance – Consulting with rongoā practitioners – Understanding appropriate tikanga (protocols)
  • STRONGLY RECOMMEND: Cultivation over wild harvesting for natives
  • Respect rāhui (customary prohibitions) on specific areas/species
  • Many areas have iwi/hapū management plans governing plant gathering

This Guide Focuses On:
Western foraging practices for introduced/naturalised medicinal herbs in Aotearoa New Zealand, NZ-specific regulations (DOC, council bylaws), conservation considerations, and identification of common introduced species. When native plants are mentioned, it is for identification/awareness purposes only—harvest guidance applies to introduced species.

Why NZ-Specific Foraging Knowledge Matters:
Unique flora (natives + introduced), specific regulations (DOC land, council bylaws), biosecurity considerations (pest plants), Tiriti o Waitangi obligations (respecting mana whenua), conservation status awareness.


Rule 1: 100% Certainty Before Use

Never consume a plant unless you’re absolutely certain of its identity. “Pretty sure” isn’t certain enough. One dangerous plant in New Zealand (and it does grow here) is poison hemlock (Conium maculatum)—it looks similar to harmless plants but causes respiratory paralysis and death.

How to Be Certain:

Rule 2: Harvest Only From Clean Locations

Never harvest from:

Safe harvest locations:

Why this matters: Plants absorb what’s in the soil and air. Contamination is invisible—you can’t see herbicides, heavy metals, or pathogens.

Rule 3: Understand DOC Land Regulations

Can you forage on DOC conservation land?

It’s complicated. DOC land includes national parks, conservation areas, and various protected zones covering about one-third of New Zealand.

General Guidelines:

Best practice: Contact your local DOC office before foraging on any conservation land. They can tell you what’s allowed in specific areas.

More info: doc.govt.nz

Private land: Always get landowner permission. Foraging without permission is trespassing.

Council land: Most councils spray for weeds. Assume sprayed unless confirmed otherwise. Contact your council for spray schedules.

Rule 4: Harvest Sustainably

The 1/10th Rule (Actually 1/20th):
Never take more than 5-10% of any plant population in a given area.

Why this matters:

In practice:

Rule 5: Start Small With New Plants

Even with correct identification, try only a small amount first.

Why: Individual allergies exist. Some people react to plants that are generally safe for others.

The protocol:

  1. Make weak tea or eat a few leaves
  2. Wait 24 hours
  3. Watch for reactions: rash, digestive upset, headache
  4. If all is well, gradually increase amount
  5. One new plant at a time

These plants are widespread, relatively easy to identify, and have practical uses. Start with these to build confidence.

1. Plantain (Plantago major and P. lanceolata)

broad leaf plantain
Broad Leaf Plantain (Plantago major)
botanical cropped image of Plantago lanceolata (narrow leaf plantain)
Narrow leaf plantain (Plantago lanceolata)

Identification:

Where to Find: Everywhere—it’s probably in your yard right now

Traditional Use: First aid plant in European and indigenous American herbalism for wounds, stings, bites

Current Research: Laboratory studies confirm antimicrobial and anti-inflammatory activity from compounds called aucubin and allantoin

Why This Matters:
Plantain is your free first-aid kit. Got a bee sting while hiking? Crush a plantain leaf and apply—the mucilage soothes while anti-inflammatory compounds reduce swelling and pain. Kids with mosquito bites? Same treatment.

How to Use:

Evidence Level: Strong traditional use; moderate laboratory evidence for anti-inflammatory effects

Free/Budget Option: 100% foraged—grows everywhere as a “weed”

2. Dandelion (Taraxacum officinale)

Botanical drawing of Taraxacum officinale
Dandelion (Taraxacum officinale)

Identification:

Where to Find: Lawns, meadows, gardens, waste ground

Traditional Use: Used globally as food (greens) and medicine (digestive bitter, liver support) for centuries

Current Research: Studies show dandelion contains inulin (prebiotic fibre), bitter sesquiterpene lactones (stimulate digestion), and significant vitamins/minerals

Why This Matters:
Dandelion greens are nutrient powerhouses—more calcium than spinach, more iron than kale. The bitterness you taste isn’t a flaw—those bitter compounds trigger your body to produce digestive enzymes and bile, improving digestion.

How to Use:

Evidence Level: Strong traditional use; moderate research evidence for digestive and liver support

Free/Budget Option: 100% foraged, with seasonal timing improving quality

3. Kawakawa (Piper excelsum)

leaves of kawakawa (Piper excelsum) plant
Kawakawa (Piper excelsum)

Identification:

Where to Find: Throughout North Island and northern South Island; coastal areas, lowland forests, forest edges; prefers partial shade

Traditional Use: Central to rongoā Māori—used for stomach complaints, skin conditions, general wellness, wounds, toothache

Current Research: Studies confirm anti-inflammatory activity from unique compounds (myristicin, yangambun). Antimicrobial properties demonstrated.

Why This Matters—Cultural Respect:
Kawakawa is a taonga (treasure) to Māori. When using kawakawa, you’re engaging with a plant that has profound cultural and spiritual significance. Harvest with respect—take only what you need, thank the plant, and never damage it.

About the Holes:
The holey leaves aren’t damaged—they’re actually considered more potent. The kawakawa looper moth (Cleora scriptaria) co-evolved with this plant. The moth eats certain leaves, and the plant responds by concentrating its medicinal compounds in those leaves. Traditional knowledge says the holey leaves are best.

How to Use:

Sustainable Harvesting:

Evidence Level: Strong traditional use (centuries of rongoā practice); emerging research evidence

Free/Budget Option: Foraged (northern regions) or purchased from Māori-owned businesses ($12-20/50g dried)

4. Cleavers (Galium aparine)

close up of leaves and stem of cleavers (Galium aparine)
Cleavers (Galium aparine)

Identification:

Where to Find: Damp, shaded areas; hedgerows, forest edges, waste ground

Traditional Use: European and North American folk medicine for lymphatic support, spring cleansing

Current Research: Limited formal studies, but traditional use is well-established. Contains flavonoids and iridoid glycosides.

Why This Matters:
Cleavers is a classic “spring tonic”—harvested when young and tender in spring to support the lymphatic system (your body’s waste-removal network). Think of it as a gentle internal cleanser after winter.

How to Use:

Timing: Harvest young growing tips in spring when most tender

Evidence Level: Strong traditional use; limited research

Free/Budget Option: 100% foraged in spring

5. Nasturtium (Tropaeolum majus)

different coloured flowers of nasturtium (Tropaeolum majus) and leaves
Nasturtium (Tropaeolum majus)

Identification:

Where to Find: Grows vigorously throughout NZ as garden escapee

Traditional Use: Used in Andean regions and Europe as food and medicine; recognised for antimicrobial properties

Current Research: Studies show nasturtium contains glucosinolates (same compounds in mustards and broccoli) that convert to antimicrobial isothiocyanates. High in vitamin C.

Why This Matters:
Nasturtium is both food and medicine. The peppery flavour you taste is from glucosinolates—the same compounds that give it antimicrobial properties. Eating nasturtium provides immune support while adding flavour.

How to Use:

Evidence Level: Strong traditional use; moderate research on antimicrobial compounds

Free/Budget Option: 100% foraged; also easy to grow from seed ($3-5/packet)

6. Purslane (Portulaca oleracea)

leaves of purslane (Portulaca oleracea)
Purslane (Portulaca oleracea)

Identification:

Where to Find: Gardens, cultivated fields, cracks in pavement, waste areas

Traditional Use: Used as food globally for millennia; Mediterranean, Middle Eastern, Mexican cuisines

Current Research: Purslane is exceptionally nutritious—one of the richest plant sources of omega-3 fatty acids (alpha-linolenic acid), plus vitamins A, C, E, and antioxidants.

Why This Matters:
Most plant omega-3 sources require processing (flax seeds, chia). Purslane provides them fresh and ready-to-eat. The crisp, slightly tangy flavour is refreshing in salads, and you’re getting anti-inflammatory fats alongside vitamins.

How to Use:

Timing: Harvest in summer when growing vigorously

Evidence Level: Strong nutritional analysis; excellent food source

Free/Budget Option: 100% foraged from gardens (many gardeners consider it a pest!)

7. Yarrow (Achillea millefolium)

Yarrow (Achillea millefolium) flowers with leaves and stems
Yarrow (Achillea millefolium)

Identification:

Where to Find: Meadows, roadsides, dry fields, waste ground

Traditional Use: Used for centuries as wound herb (stops bleeding), fever reducer, digestive aid

Current Research: Contains compounds including achilleine (reduces clotting time), flavonoids (anti-inflammatory), and volatile oils (antimicrobial)

Why This Matters:
Yarrow is traditional battlefield medicine—the genus name Achillea references Achilles, who supposedly used it to treat soldiers’ wounds. Modern research confirms it does speed clotting.

How to Use:

IMPORTANT SAFETY WARNING:
Yarrow can look similar to poison hemlock (Conium maculatum), which is deadly. Key differences:

  • Yarrow: Hairy, grooved stem; pleasant aromatic scent; flat-topped flower cluster
  • Poison hemlock: Smooth, hairless stem with purple blotches; musty, mousy smell; compound umbel flowers

If you see purple blotches on the stem or smell a musty odor, DO NOT use—it may be poison hemlock.

Evidence Level: Strong traditional use; moderate research evidence

Free/Budget Option: 100% foraged

8. Pūhā (Sonchus species – often S. oleraceus)

Pūha (Sonchus oleraceus) leaves and flower
Pūhā (Sonchus oleraceus)

Identification:

Where to Find: Disturbed ground, coastal areas, grasslands—common native throughout NZ

Traditional Use: Traditional Māori vegetable (called rauriki or raupeti historically); often served with pork and potatoes

Current Research: Rich in vitamins (A, C, K), minerals, and contains bitter sesquiterpene lactones

Why This Matters:
Pūhā is both free food and traditional Māori kai (food). The bitterness is from the same compound family as dandelion—it supports digestion while providing excellent nutrition.

How to Use:

Timing: Best in spring through midsummer; becomes more bitter in autumn

Cultural Note: This is part of traditional Māori cuisine. While it’s fine to forage and eat, approach it with awareness of its cultural significance.

Evidence Level: Strong traditional use as food; good nutritional profile

Free/Budget Option: 100% foraged


Before You Go:

Bring:

While Foraging:

After Foraging:


Spring (September-November):
Best for: Young greens, spring tonics

Summer (December-February):
Best for: Flowers, abundant leafy growth

Autumn (March-May):
Best for: Roots, seeds

Winter (June-August):
Best for: Evergreen plants, identification practice


Drying Herbs:

  1. Rinse briefly if needed (don’t soak—leaches compounds)
  2. Pat dry with clean towel
  3. Spread in single layer on screen or clean cloth
  4. Place in warm, dark, airy spot (not direct sun—degrades compounds)
  5. Turn daily
  6. Ready when leaves crumble easily (3-7 days depending on humidity)
  7. Store immediately in airtight jars away from light

Signs of Failed Drying:


Mistake 1: Over-confidence “I think that’s plantain” = Don’t use it yet “I know with 100% certainty that’s plantain based on parallel veins, growth habit, and flowering spike” = Use it

Mistake 2: Harvesting too much Taking half the dandelions in a patch feels like “only half,” but it’s way too much for sustainable practice.

Mistake 3: Assuming clean Even organic gardens can have contaminated soil from historical use. Know the land’s history.

Mistake 4: Learning too many plants at once Learn 3-5 plants thoroughly before adding more. Depth beats breadth.

Mistake 5: Ignoring cultural context Plants like kawakawa and pūhā have deep cultural significance. Harvest and use them with respect for that history.


Don’t forage if:

Alternative: Many foraged plants grow easily in gardens. Kawakawa, nasturtium, purslane, and herbs all thrive in NZ gardens, giving you clean, accessible sources.


Week 1-2: Learn plantain thoroughly

Month 1: Add dandelion and one other plant

Month 2-3: Expand slowly

Long-term: Develop relationship with place


Books:

Online:

Community:


PlantKey ID FeatureMain UseSafety Notes
PlantainParallel veins in leavesFirst aid for bites/stingsVery safe; test for rare allergy
DandelionMilky sap, hollow stemFood, digestive bitterAvoid if allergic to Asteraceae family
KawakawaHeart-shaped leaves, holeyDigestive, skinAvoid medicinal doses in pregnancy
CleaversSticky/Velcro feelLymphatic supportUse fresh (dried loses potency)
NasturtiumPeltate leaf attachmentFood, antimicrobialGenerally very safe
PurslaneSucculent leavesNutritious foodVery safe; excellent food plant
YarrowFeathery leaves, aromaticFirst aid for bleedingCan look like poison hemlock—verify carefully
PūhāMilky sap, shiny leavesFood (traditional Māori)Bitter—requires cooking; safe

Foraging connects you to the living world in immediate, practical ways. That plantain in the crack of the pavement becomes your first-aid kit. The dandelion in your lawn becomes your dinner salad. The kawakawa in the bush becomes your digestive tonic.

Start slowly. Learn deeply. Harvest respectfully.

The land is generous when approached with knowledge and respect.


  1. Crowe, A. (2004). A Field Guide to the Native Edible Plants of New Zealand. Penguin Books.
  2. Knox, J. (2013). The Forager’s Treasury: The Essential Guide to Finding and Using Wild Plants in Aotearoa New Zealand. Penguin Random House NZ.
  3. Riley, M. (1994). Maori Healing and Herbal: New Zealand Ethnobotanical Sourcebook. Viking Sevenseas.
  4. Te Ara Encyclopedia of New Zealand. (n.d.). Edible native plants. Retrieved from https://teara.govt.nz
  5. Department of Conservation. (n.d.). Conservation Act and regulations. Retrieved from https://www.doc.govt.nz
  6. Companion Plants International. (2002). Anti-inflammatory activity of Macropiper excelsum extracts. Planta Medica.

Rongoā Māori Disclaimer: This guide does not represent rongoā Māori preparation methods or traditional Māori medicine-making. Rongoā Māori is a complete healing system with its own protocols, karakia (prayers), and cultural practices that cannot be separated from te ao Māori (the Māori worldview). For rongoā Māori knowledge and treatment, please consult qualified rongoā practitioners through Te Paepae Motuhake or other appropriate Māori health services.

Medical Disclaimer: This guide is for educational purposes only and is not medical advice. Herbal preparations can interact with medications, cause allergic reactions, and may be contraindicated in certain health conditions. Always consult qualified healthcare practitioners before using herbal medicines, especially if you are pregnant, nursing, taking medications, or have medical conditions. You are solely responsible for correct plant identification, safe preparation practices, and appropriate use. The information presented represents current scientific understanding, which continues to evolve. Persistent or severe pain requires professional medical evaluation. You are solely responsible for your safety and for confirming plant identity before use. Always consult multiple reliable sources. When in doubt, do not consume. The author and publisher are not responsible for any adverse effects resulting from use of this information. Always seek professional medical advice for health concerns.

Note on Pricing: All prices mentioned in this guide are approximate and based on New Zealand suppliers as of December 2025. Prices vary by supplier, season, and market conditions. We recommend checking current prices with your local suppliers.