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The Verdant HoursHerbal gathering almanac
Plant atlasPiperaceae
Study first

Kawakawa.

Piper excelsum

Also found as Pepper tree (NZ)

A New Zealand shrub with heart-shaped, often insect-holed leaves used in Māori rongoā and tea.

Sources checked 27 September 2026 · Specialist field review pending
Kawakawa: Heart-shaped leaf.
Tim Park · CC BY 4.0
Before any gathering or use

Traditional practice selects insect-chewed leaves; follow guidance from Māori knowledge holders.

Where it grows

Tracked records and known growing zone

Explore on the field map
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Squares: where people recorded it, brighter where more people did
Verified records
6,916
People who recorded it
2,058
Most records (southern hemisphere)
Jan, Apr–May, Sep–Nov
Records span
1970–2026
Southern hemisphere · 6,914 dated records
Kawakawa verified records by month, southern hemisphere
January554
February431
March422
April1389
May543
June361
July441
August522
September587
October628
November560
December476

Research-grade iNaturalist records, snapshot Aug 27, 2026. The growing zone combines areas where different people have repeatedly verified it. Records show where people looked and found it, not current abundance or permission to gather.

01 / Learn to see

Field marks

  1. 01

    Shrub with jointed, swollen-noded stems.

  2. 02

    Heart-shaped, glossy leaves, often with holes chewed by looper caterpillars.

  3. 03

    Upright spikes of tiny flowers, later orange fruit on female plants.

These are study prompts, not a complete identification key. Confirm the full plant with a regional flora and an experienced local identifier.

02 / Resolve the differences

Look closely. Compare.

Selected comparisons only. Other lookalikes may occur locally.

03 / Meet the place

Habitat & season

Range context

Coastal and lowland forest of Aotearoa New Zealand.

Watch the plant stage

Leaves year-round.

Stage guidance is not a local forecast. Check your climate, elevation and a regional source; no month-shift formula is used here.

04 / Gather with care

Documented use & care

Parts discussed: Leaf

Brew leaves as tea.

Care for the patch

Rongoā practice asks permission and takes leaves from the sunny side of the plant.

Preparation & storage essentials

05 / Follow the evidence

Sources & review

Checked 27 September 2026. Original editorial synthesis; source institutions have not reviewed or endorsed this guide. Independent botanical field review is pending. Photos illustrate specimens; they do not certify the identity of a plant you find.

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