Kwai Muk tree. Kwai Muk flower. Spacer. Spacer.
Kwai Muk Tree (left), Kwai Muk flower, right.

Kwai Muk

Artocarpus hypargyraeus


Native to China and not very widely known around the world apart from collectors.


Sub-tropical. Can be damaged by frosts and sub-zero temperatures may kill the tree.

Plant Description:

It is a slow-growing, small evergreen tree. The canopy is compact, with beautiful glossy green leaves that would earn it a place in many gardens.


Belongs to the Moraceae Family, related to jakfruit, breadfruit, mulberries and figs.


Preference for well-drained, mildly acid soil. It can survive brief flooding.


Propagation is largely by seeds.


There are no widely recognised varieties.

Flowering and Pollination:

It is monoecious but relatively self-sterile, with isolated trees setting many small seedless fruit.


Give water during extended dry spells. Grow in full sun, or very lightly shaded. May need foliar sprays of zinc and manganese and soil application of iron chelates.

Wind Tolerance:



Prune only to remove dead branches, and to decrease the height or width of the tree.

The Fruit:

Fruit size, normally 5-7cm in diameter, depends on the effectiveness of pollination; similarly fruit shape can be irregular if pollination is only partial. Like the jackfruit, the fruit is a syncarp. When ripe, skin colour is yellow and pulp is orange-red with a pleasant sub-acid flavour.

Fruit must be completely ripe. Unripe fruits produce white, sticky latex. Ripening happens quickly, in 1 to 3 days.

Fruit Production and Harvesting:

Yield can be up to 2000 fruits per tree under ideal conditions. Pick when totally ripe. Fruits mature in autumn.

Fruit Uses:

Eaten fresh. Pulp can be used for desserts and baking.

Pests and Diseases:

None observed.


An attractive tree, good fruit, worthy of garden space.

More info: Kwai Muk Pollination

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