Damon Mcknight
Passionfruit is a popular fruit in Australia, and the passionfruit vine is a strong, vigorous, evergreen climber that can be grown in many Australian gardens. With delicious fruits, lush green and tropical leaves, and spectacular flowers, it's no wonder that many people want to grow them. Passionfruit vines can be grown in large pots or in the ground, as long as they have an adequate support structure and plenty of room to climb and spread. They require regular watering and feeding, and they usually start to produce fruit in their second year.
| Characteristics | Values |
|---|---|
| Best time to plant | Spring to autumn |
| Climate | Subtropical and temperate |
| Aspect | Full sun with protection from wind |
| Water | Regularly, especially when flowering and fruiting |
| Soil type | Rich in organic matter, well-drained |
| Blooms/Harvest | Flowers – mid-spring, fruit – early summer |
| Space required | 2 x 2 m |
| Support structure | Trellis, fence, wall, pergola |
| Fertilizer | Yates Dynamic Lifter Soil Improve & Plant Fertiliser, chicken manure, Scotts Osmocote® Controlled Release Fertiliser: Citrus & Fruit, Seasol fertilizer |
| Pruning | Late winter or early spring |
| Pest control | White oil |
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What You'll Learn
Choosing the right variety for your climate
Passionfruit vines can be grown in most climates in Australia, but they particularly thrive in subtropical and temperate regions. There are over 50 varieties of passionfruit vine, and cultivars differ in cold tolerance. Therefore, it is important to choose a variety suited to your climatic region.
The most common variety in Australia is the Black Passionfruit (Passiflora edulis). Other varieties include Banana, Hawaiian, Norfolk Island, Yellow Giant, Panama Gold, Panama Red, and Nellie Kelly. The Nellie Kelly variety is a good choice for cooler climates, while the Panama Red variety grows best in the tropics.
If you are planting a purple variety, it is recommended to do so in spring so that it has time to grow stronger before the winter chill sets in. The Sweetheart variety can take 2-3 months to ripen in summer, while the Nellie Kelly variety, suitable for cooler climates, can take longer.
The grafted Panama Gold variety has big fruit with golden yellow skin, while the Panama Red variety has large fruit with red skin. Both are good choices for growing in the tropics. For southern Australia, the grafted Nelly Kelly black passionfruit is a good choice.
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Preparing the soil and planting
Passionfruit vines are a popular addition to Australian gardens, but they can be tricky to grow due to their short lifespan. To prepare the soil and plant your passionfruit vine, follow these steps:
Choose a Sunny Spot
Select a spot in your garden that receives full sun (around 6 hours) and is protected from harsh winds. Passionfruit vines originated in South America and thrive in subtropical and temperate climates, so they need a warm, sunny environment. Avoid planting near trees or other plants with competitive roots.
Provide a Support Structure
Passionfruit vines are vigorous climbers that can grow up to 3-6 metres tall and 2-4 metres wide. They need a sturdy support structure to grow upon, such as a strong trellis, fence, wall, or pergola. Ensure your chosen support structure is positioned near the vine.
Prepare the Soil
Passionfruit vines grow best in soil that is rich in organic matter. If your soil needs extra nutrients, you can mix in compost, manure, or blood and bone. It is also important to ensure your soil is well-drained.
Dig a Hole
Dig a hole at the same depth and twice the width of your potted vine. Mix some compost or potting mix through the backfill soil and the soil at the bottom of the hole. Form a raised ring of soil about 20cm away from the base of the planned stem to help retain water.
Plant the Vine
Remove the passionfruit vine from its nursery pot and position it in the prepared hole at the same depth it was in the pot. Water it well to settle the roots. If you are planting multiple passionfruit vines, space them 3-4 metres apart.
Mulch and Fertilise
Apply a layer of mulch, preferably organic, around the base of the plant to retain moisture and suppress weeds. Fertilise your passionfruit vine with a complete fertiliser, being careful to not use one that is too high in nitrogen, as this will encourage leaf growth over flower and fruit production.
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Providing support for the vine
Passionfruit vines are strong, vigorous climbers that require sturdy support as they can grow up to 6 metres tall and 4 metres wide. They are known for their tendrils, which are little curly, spring-like things that attach themselves to structures like wires, trellises, fences, walls, or pergolas.
When planting, ensure your passionfruit vine has adequate support by providing a structure for it to climb on. This can be a trellis, fence, wall, or pergola. If you're using a trellis, attach the side shoots of the vine to it and let the main stem grow vertically until it reaches the top. You can also train the vine to grow along a wire or screening wall.
Passionfruit vines grown in large pots or containers will also need support. Choose a pot that is at least 50 cm deep and wide with plenty of drainage holes. Ensure the pot has a strong support structure for the vine to climb on.
To promote healthy growth and fruiting, keep the vine well-watered, especially during its first year, flowering, and fruiting stages. Water deeply a couple of times a week, spreading the watering over the entire root system.
Fertilise your passionfruit vine with well-watered citrus food or chicken manure twice a year in spring and autumn. Avoid over-fertilising or using fertilisers high in nitrogen, as this will encourage leaf growth at the expense of flowers and fruits.
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Feeding, fertilising and mulching
Passionfruit vines require regular watering, especially when the vine is young, and when it is flowering and fruiting. Water deeply a couple of times a week, depending on weather conditions and climate. Spread the watering over the entire root system, not just around the stem of the vine.
Feed your passionfruit vine with well-watered citrus food or chicken manure twice a year, in spring and autumn. Spread the fertiliser over the entire root system. Avoid over-feeding or using fertilisers that are high in nitrogen, as this will encourage leaf growth at the expense of flowers and fruits. You can also use a complete fertiliser, such as Yates Thrive Natural Citrus & Fruit Organic Based Pelletised Plant Food, every six weeks during the warmer months to encourage healthy growth and improve fruiting and flowering.
Apply a layer of mulch, preferably organic, around the base of your passionfruit plant. Mulching around the root zone of your passionfruit with an open organic mulch will help retain moisture and suppress weeds.
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Pruning and replanting
Passionfruit vines have a relatively short lifespan of about six to seven years. Therefore, replanting is necessary every few years, or when the vine starts to look tired and old. Commercial growers often replant every three years to ensure optimal fruit production. When replanting, choose a sunny spot with well-drained soil and provide a sturdy support structure for the vine to grow upon, such as a trellis, fence, or wall. Dig a hole twice as wide and deep as the vine's root ball and mix in organic matter, compost, or fertiliser. Position the passionfruit vine in the hole at the same depth it was previously planted, backfill, and water it well to settle the roots.
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