Native & adapted

Malay apple

Syzygium malaccense

Also known as Mountain apple · Pommerac · Ohia ai · Jambu bol

A tropical tree with showy pink powder-puff flowers and crisp, juicy red fruit. It struggles with Phoenix's dry air, so it does best in a sheltered, shaded courtyard.

EdibleFruitingEvergreenFrost tender

Landscape layersLower canopy

Mature size

15–20 ft tall and 10–15 ft wide in Phoenix

Climate fit

Urban core · USDA 9b–10a

Plant spacing

12 ft from other trees

Frost

Damaged at 32°F.

Special categories

EDIBLE

Hardiness guidance

USDA 10b–11; damaged near 32°F

Winter chill

None

Typical harvest

Summer.

Before you plant

These conditions determine whether it will thrive.

Soil chemistry

Fast-draining soil rich in compost. Phoenix soil is alkaline, so work in soil sulfur and organic matter and use chelated iron if new leaves turn yellow between the veins.

Required microclimate

Placement is part of the growing system.

Humid, shaded courtyard sheltered from wind, with frost cover.

Cold hardiness

Cover on every frost night

No tested figure. Morton calls it strictly tropical and too tender even for most of Florida, so treat it as a container plant that comes inside before any night in the 30s.

Heat tolerance

Needs afternoon shade

Needs a humid climate with 60+ inches of rain a year, which makes it one of the hardest fits for Phoenix. Keep it in deep shade in the most humid spot you have; dry 115°F air will burn it even with plenty of water.

Sources:

hort.purdue.edu

Right plant, right place

Will Malay apple grow at your Arizona property?

Needs more humidity than Phoenix offers; grouping it with other plants and mulching thickly helps.

Best regional fit: Urban core · USDA 9b–10a.

Light

Sun exposure

Morning sun with afternoon shade from June through September, such as the east side of a house or under a taller nurse tree. Protect from frost on winter nights.

Water

Irrigation

High and steady. Mist or water around it on very dry days.

Fruit set

Pollination

Self-fertile.

Harvest

How to use it

Fresh, sliced into salads, or poached.

Planting & stewardship

How to help Malay apple thrive

1
Shade from afternoon sun and hot wind.
2
Keep soil evenly moist.
3
Protect on every frost night.
4
Feed lightly through the warm season.

Read the horticultural reference ↗