Plants & trees

Guava

Psidium guajava

Round green guava fruit hanging among leaves on a tree

Photo: Unknown · CC BY-SA 3.0 · via Wikimedia Commons

Where
Your garden, Coco town, Dry forest
When
Fruit mostly in the rainy season
Size
A shrubby tree to about 8 metres
Should I worry
Enjoy it
Harmless, and worth planting for the birds alone.

You smell a guava tree before you see it. The ripe fruit has a heavy sweet musk that carries a long way, and a tree in full fruit turns a garden into a bird feeder.

Where you’ll see it

Gardens, pasture edges and disturbed ground everywhere. It spreads readily from seed, so it turns up where nobody planted it.

What to know

A small tree with smooth, flaking, mottled bark and round green fruit that ripens to yellow, with pink or white flesh full of small hard seeds. Eat it whole, skin and all, or make juice, which is a Costa Rican staple. The competition is stiff: parakeets, magpie-jays, kinkajous and fruit flies all get there first. Pick it a day early.

Questions people ask about this one

Why does my guava have worms in it?

Fruit fly larvae. They lay eggs in ripening fruit and the fruit is often full of them by the time it is soft. Pick guavas slightly under-ripe and let them finish indoors, or accept that the parrots and squirrels will win, which is a perfectly good outcome.

Wondering what else is out there?

Ask me on the call. I'll tell you what actually shows up in a Coco garden, what to do about it, and the one guy everyone rings when there's a boa in the roof.

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