edenhana

Passionfruit

Frost-tender rather than just frost-shy: a hard frost can kill the vine outright rather than just damaging soft growth, which makes it a realistic outdoor option mainly in Northland, Auckland and other genuinely mild, sheltered parts of the country. Further south it needs a very sheltered, warm microclimate, such as a north-facing wall, or is better grown in a large container that can be moved under cover over winter. Relatively short-lived for a vine, commonly declining after 5-7 years, so it's worth being realistic that this isn't a multi-decade planting like a fruit tree.

Sun
full sun
Water
moderate
Spacing
300cm
Harvest
Ready in about 1-2 years
Difficulty
intermediate
Grows in
Whangārei / Northland, Auckland, Hamilton / Waikato, Tauranga / Bay of Plenty, Gisborne, Napier / Hawke's Bay, New Plymouth / Taranaki, Palmerston North / Manawatū-Whanganui, Wellington, Nelson, Tasman
Expected yield
50-100 fruit per mature vine per season
Cost to grow
~$20 NZD
Grocery value
~$70 NZD
Mature height
3m
Flowering season
Jan, Nov, Dec
Evergreen
Yes
Common diseases
Root rot in poorly drained soil, Fungal leaf spots in humid conditions
Common pests
Aphids, Scale insects

When to plant by region

In Whangārei / Northland, Auckland, Tauranga / Bay of Plenty, Gisborne and Napier / Hawke's Bay: September-November. In Hamilton / Waikato, New Plymouth / Taranaki, Palmerston North / Manawatū-Whanganui, Wellington, Nelson and Tasman: October-November.

Growing stages

  1. Planting & establishmentSpring, once frost risk has passed

    • Choose a warm, sheltered, full-sun position; a hard frost can kill this vine outright, not just set it back
    • Install a strong trellis or fence support at planting time for the vigorous vine to climb
    • Outside the warmest northern parts of the country, consider growing in a large container that can be moved under cover over winter

  2. Early growthFirst year

    • Train the main vine onto its support and pinch out the tip once it reaches the desired height to encourage side growth
    • Watch for aphids and scale insects on new growth
    • First fruit is usually 1-2 years away

  3. Flowering & fruiting

    • Bees are the main pollinator, though hand-pollination with a small brush can help fruit set in cooler or less bee-active conditions
    • Fungal leaf spots can appear in humid conditions; good airflow through the vine helps
    • Fruit drops from the vine when ripe rather than needing to be cut, which is the easiest ripeness sign to go by

  4. MaturityOngoing annual harvest

    • A well-established vine can produce 50-100 fruit per season
    • Prune back hard in early spring to control size and encourage strong new fruiting growth
    • Relatively short-lived for a vine, commonly declining in vigour after 5-7 years, so don't be surprised if it eventually needs replacing

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