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Do Frangipanis Have Invasive Roots? [Answered]

These trees can get quite large and you want to be sure that their roots are not going to cause any structural damage to your house or pool.

If you’re interested in growing a frangipani in your garden or even around your pool, you’ll want to know whether they have invasive roots.

These trees can get quite large and you want to be sure that their roots are not going to cause any structural damage to your house or pool.

Here’s everything you need to know about a frangipani’s root system.

Does a frangipani have an invasive root system?

The good news for frangipani lovers is that these trees do not have an invasive root system. They actually have quite a small rootball. 

This makes them ideal for planting close to structures such as pools, your house, or next to exterior walls or driveways.

Frangipani trees | Plant care

Some varieties of frangipanis also have quite a shallow root system. You have to bear this in mind when choosing your planting location.

As these plants can get quite top-heavy when they are in full foliage and bloom, they need to be protected from strong winds as they can easily topple over.

When you first plant a new frangipani, it’s a good idea to provide some additional support in the form of sturdy stakes. This will support the trunk of the tree until it has established enough of a root system to stand up on its own.

Make sure that you use two to three stakes spaced evenly around the trunk and secure the plant using some old stockings so as not to damage the bark.

This is why many gardeners opt to plant their frangipanis against a sunny wall that will provide plenty of shelter from strong winds.

RELATED:

Does our native frangipani (Hymenosporum flavum) have an invasive root system?

Native Frangipani Hymenosporum flavum 3 | Plant care

Like other frangipani varieties, our native frangipani also does not have an invasive root system.

This means it can be planted near your house or around the pool without fear of it causing any structural damage.

Can you grow a frangipani in a pot?

Frangipani plants in pots | Plant care

You can certainly grow a frangipani in a pot as long as the pot is large enough. Ideally, you want to select a pot that is at least 50 cm in diameter and of similar depth.

This will give the roots enough space to grow so that they will be strong enough to support the top growth of the plant. 

Be sure to place your potted frangipani in a sunny sheltered spot so that it is protected from strong winds. 

Newly planted frangipanis should be staked to give them extra support until their root systems have had some time to develop adequately to support the tree.

Take care not to disturb the root system too much when potting your frangipani because the roots are easily damaged.

If you control the top growth of your plant so that it doesn’t get too large, it should be happy to live in the same pot for many years.

While you want to provide your frangipani with adequate water during the summer months, it’s not necessary to water your potted plant in winter because it will be dormant.

RELATED: What to Plant Under a Frangipani Tree

FAQ

Where is the best place to plant a frangipani tree?

A frangipani tree can be planted in any sunny spot in your garden. They are ideal for planting around a pool or against a wall as they can add a tropical feel to your garden.

How much space does a frangipani need?

Frangipanis have relatively small root balls, so they don’t require a massive amount of space. They can even be grown in large pots that are at least 50 cm in diameter and equally as deep.

How big is the rootball of a frangipani?

For a frangipani, the size of the rootball will correspond to the diameter of the trunk. As a guide, the rootball will have a diameter of 30 cm for every 2.5 cm of the trunk’s diameter. So, if the trunk has a diameter of 10 cm, the rootball will have a diameter of 120 cm.

How do you get rid of a frangipani?

The best time to remove a frangipani from your garden is during winter when the tree is dormant. Start by removing the branches, one by one, and dig out as much of the rootball as possible. Once you do this, it’s unlikely that the frangipani will regrow.

How far back can you cut a frangipani?

Frangipanis are very resilient and can be cut back quite hard. To rejuvenate an overgrown frangipani, you can cut the main trunk so that it is only 1 to 2 metres above the ground. New branches will sprout from the trunk and produce a much lower canopy.

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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