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Complete Guide to Pruning a Passionfruit Vine (Australia) 

The best time to prune your passion fruit is in early spring as new growth starts again after the plant’s dormancy throughout winter.

In order to keep your passionfruit vine under control and to promote plenty of flowers and fruits, it needs to be pruned on an annual basis.

This will also promote thicker stems that are capable of supporting the heavy fruits once they appear.

When to prune passion fruit

The best time to prune your passion fruit is in early spring as new growth starts again after the plant’s dormancy throughout winter.

You can also trim your passionfruit vine during the growing season, especially in summer.

Quite often this is necessary because these plants are vigorous growers and can take over an area fairly quickly.

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How to prune passion fruit

In late winter or early spring, give your passion fruit a good prune.

Bear in mind, that your passionfruit will only flower and fruit on the current season’s new growth.

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This new growth will appear on the leaf axis of the horizontal stems.

That’s why you want to prune back any really long vines in order to encourage lots of new growth.

Here’s what to do:

Remove any dead wood or broken stems. These should be cut back to the main stem or the main lateral vines.

Then, remove one-third or around 30 cm of each healthy stem.

If possible, try to cut back the stems that have grown from the horizontal branches leaving just two emerging buds on each stem.

These growth buds will form the new stems that will produce the flowers and fruit.

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However, if your passionfruit vine is really overgrown, just make sure that you trim back all the long vines, cutting off around one-third of the growth.

Always make sure that you cut to a growth bud so that you don’t end up with lots of dead wood where you’ve made the cuts.

How to train passion fruit vines

The best way to train passionfruit vines is to grow them up a trellis or to install a number of vertical and horizontal wires that the vine can cling to.

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Ideally, you want to let the main stem grow to the top of the trellis or support and then stop the upward growth by pinching off the tip.

This main stem won’t produce any flowers or fruits. The fruiting stems will grow from the leaf axis of the horizontal stems.

To keep your plant nice and neat, focus on keeping around 3 or 4 horizontal stems on either side of the main stem. Attach these to the horizontal wires or horizontally along the trellis.

During the summer growth period, you want to keep an eye on these stems and train them horizontally by continuing to attach them to the wires or trellis.

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Quite often, the stems will attach themselves with their long tendrils but you want to make sure that they’re growing in a horizontal direction.

FAQ

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How long does a passionfruit vine last?

Unfortunately, passionfruit vines only have a fairly short lifespan of around 6 to 7 years. Therefore, once your plant gets to around 4 or 5 years of age, you should plant a new passionfruit vine in a different spot so that you can have a succession of fruit once the old vine has stopped producing.

What is the best fertilizer for passion fruit?

In order to encourage your passion fruit to flower and produce fruit, you need to feed it regularly with a fertiliser that is high in potassium. Choose one that is designed specifically for fruiting plants such as citrus. Chicken manure is also great for passionfruit vines.

Is Seasol good for passionfruit?

Seasol is ideal for passion fruit vines when it’s combined with a fertiliser that’s high in potassium. Seasol is a great soil conditioner and will allow your passion fruit to take up other nutrients more easily from the soil.

Photo of author

Annette Hird

Annette Hird is a gardening expert with many years of experience in a range of gardening related positions. She has an Associate Diploma of Applied Science in Horticulture and has worked in a variety of production nurseries, primarily as a propagator. She has also been responsible for a large homestead garden that included lawn care, fruit trees, roses and many other ornamental plants. More recently, Annette has concentrated on improving the garden landscape of the homes that she has lived in and focused a lot of energy on growing edible plants as well. She now enjoys sharing her experience and knowledge with others by writing articles about all facets of gardening and growing plants.

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