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Kayleigh Dray

How to grow Chilean guava for a beautiful evergreen with surprisingly delicious berries

Chilean guava berries up close.

It's surprising that so few of us have learned how to grow Chilean guava already. Also known as the New Zealand cranberry, this evergreen shrub is one of those plants that ticks every box going – pretty to look at, tasty to eat from, and incredibly easy to grow.

Once upon a time, this evergreen plant was said to be one of Queen Victoria's favourite edimentals. The dark red berries look like blueberries, but they taste a lot more like strawberries (albeit with a spicy kick).

All that being said, you'll need to brush up on your overwintering skills if you really want this one to thrive, particularly in light of the summer and autumn we've just had.

'Chilean guava sounds like a plant that won’t grow so well in the UK, but in fact it’s a lovely plant to grow here, and, despite being unlikely to get big fruits, smaller berries can be harvested and they taste really good,' promises Morris Hankinson, director of Hopes Grove Nurseries.

'Growing new and unusual plants is such a joy and harvesting homegrown fruits that aren’t readily available in the shops is fun!' he continues.

'It’s a nice, neat and easy to grow shrub, perfect for planting in pots, so it’s definitely worth a place in your container garden!'

What you will need

While you can grow Chilean guava from seed, it's a slow-growing evergreen, so it will take a long time to produce fruit.

With that in mind, then, it's easier to start with a plant, which you can propagate from cuttings or by layering. The Chilean guava 'Flambeau' variety (available from Crocus) is a great shout, as its colourful evergreen foliage and pretty, pinkish white flowers make for a welcome burst of brightness in any garden.

Better still? It's borderline hardy, so you'll only need frost protection in colder spots.

Once you've got your plant, you'll also need:

Step-by-step guide

Once you've gathered all of your tools together, it's time to learn how to grow Chilean guava in earnest. Here's what the experts advise...

1. Find a good spot

The first thing you need to do when growing Chilean guava is to figure out where you're going to put it.

'You'll want to plant it in a sunny or partially shaded spot, preferably sheltered from strong winds,' says Christopher O'Donoghue, co-director at Gardens Revived.

'A south-facing wall can provide extra warmth,' he adds, noting that it's a good idea to consider planting your Chilean guava in a pot, as it will allow you to more easily move it for overwintering purposes.

'You'll need a large planter with drainage holes to prevent waterlogging.'

2. Prep the soil

The next chapter in our How To Grow Chilean Guava 101 guide is simple enough: prep the soil!

'You'll want to make sure the soil is well drained and well prepared with plenty of well-rotted organic matter,' says Morris.

(Image credit: Getty Images)

Christopher adds that 'Chilean guava prefer well-drained, slightly acidic soil (pH 5.5 to 6.5). In the UK, so you may need to amend your soil with ericaceous compost.'

You can use something like the Sonkir Soil pH Meter from Amazon to test your soil's pH. And you may, once you've planted your Chilean guava, like to boost its quality of life by mulching around it, too.

3. Show it some TLC

As mentioned already, it's incredibly easy to learn how to grow Chilean guava – largely because it needs so little in the way of maintenance.

'It will need to be watered much like other container-grown plants, as well as fed throughout spring and summer with an organic liquid feed,' says Morris. 'It will need very little else, including pruning, although a light trim can keep it in shape.'

4. Keep it cosy

If you're learning how to grow Chilean guava in warmer regions of the UK, you'll be pleased to learn that this tasty plant can usually survive mild winters, so long as you protect it from frost with fleece or by mulching the base heavily.

'In colder regions, it's a good idea to move potted plants to a greenhouse or indoors for the winter months,' adds Christopher.

5. Be patient

Anyone who's learned how to grow Chilean guava will tell you, in no uncertain terms, that those beautiful berries ripen slowly over the autumn.

'Try not to pick them too early,' says Christopher, who adds that they will deepen in colour before they're ready to go. 'Leave them on a little longer than you would expect, and be sure to taste the first few as you pick them, to determine if they're ripe enough!'

FAQs

How to grow Chilean guava in the UK?

'Chilean guava (Myrtus ugni) is an evergreen shrub that can grow to about 1m,' says Morris Hankinson of Hopes Grove Nurseries. 'If you want to grow it in the UK, you need a sunny, warm spot in the garden where it will be sheltered from colder weather, downpours and wind.'

Adding that it will fare even better if you have a greenhouse or conservatory to grow it in, Morris notes that choosing to plant your Chilean guava in a large container is a great idea, particularly if your garden is particularly cold and wet in winter, as it will allow you to bring it inside.

Which month is best to plant Chilean guava?

If you're not sure which month is best to plant Chilean guava, Christopher O'Donoghue of Gardens Revived advises you plant in spring after the risk of frost has passed.

'The flowers should bloom in May and June, but it's those tasty berries you'll want to hold out for,' he adds, noting that these should appear in the autumn.

While Chilean guava fruits usually grow to the size of a tennis ball, Morris says that they are likely to be much smaller in the UK.

'Harvesting the berries in the autumn is still worth it, though, for the edible sweet, strawberry x tropical flavour which can be used in baking, jams and any other fruity dish,' he adds.

And just like that, we absolutely need to try a Chilean guava berry.

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