The Story
Plant Bio
Melicope ternata, commonly known as Wharangi, is an evergreen shrub or small tree native to New Zealand, reaching up to twenty-six feet in height with a rounded, bushy habit. The glossy, bright lime-green trifoliate leaves feature translucent oil glands that emit a distinct citrus scent when crushed.
Small, greenish-white flowers cluster along the branchlets in spring, followed by split capsules containing shiny black seeds. The vivid lime-green new growth provides a striking contrast against the mature foliage throughout the growing season.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Shrub
Height
315"
Width
157"
Light
Full Sun, Partial Sun
Zones
9, 10
Water
Moderate
Humidity
Moderate to High
Lifespan
Long-lived
Native To
New Zealand
Toxicity
Non-toxic but skin irritant
Bloom period
Spring
In flower about 3 months of the year
Planting
How to Grow
- Select a planting site in full sun to partial shade with highly permeable loam, sand, or well-draining clay.
- Dig a hole twice as wide as the root ball but of equal depth to prevent the stem from settling too deep.
- Backfill with native soil without adding heavy organic amendments that retain excessive moisture.
- Apply a thin layer of mulch around the root zone, keeping it at least three inches away from the main trunk to prevent collar rot.
Pro Tip
Do not apply heavy citrus fertilizers or overwater, as this species is highly susceptible to fatal root rot; ensure the soil drains rapidly and keep mulch away from the trunk.
Keep It Thriving
Care Guide
Do
- Ensure excellent soil drainage to prevent root rot pathogens.
- Prune lightly after spring flowering to maintain shape or form a hedge.
- Water regularly during the first growing season to establish a deep root system.
Don't
- Do not prune hard into old, leafless woody stems, as they fail to regenerate.
- Do not over-fertilize with heavy citrus formulas, which can damage the plant.
- Do not allow the soil to remain waterlogged or chronically saturated.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Prune |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Wharangi questions
What zones can Wharangi grow in?
Wharangi is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Wharangi deer resistant?
Not reliably. Deer may browse Wharangi, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Wharangi bloom?
Wharangi typically blooms in spring through spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Wharangi need full sun?
Wharangi does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Wharangi drought tolerant?
Yes — once established (usually after the first full season), Wharangi handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
Keep exploring
Explore the genus
Hardy in your zone?
Grow Wharangi with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.