Jackfruit tree growing tree of the genus Artocarpus also known as Jack tree, Jackfruit tree perennial evergreen plant, grow for the edible fruits and seeds, and can used as shade tree, grows in tropics, subtropical, mediterranean climate and growing in hardiness zone 11a, possible to grow in hardiness zone 10b+ but when the tree is young need overwinter care.
Leaves color green, in elliptic to oval shape, leaves can be deeply lobed
Flowers looks like small fruits there are separate female and male flowers, the female bigger and lighter green to yellow, and mostly grown before the male, flowers grow on main truck or big branches.
Jackfruit tree fruit
Fruit color is green to yellow on the fruit there is spines, fruit weight 3-40 Kg (can be more) the size 15-50 cm. the fruits have bad fragrant and not recommend to touch them in the hand, to know when to pick up the fruit need to check that the spines get out easily by touch.
Seeds edible the color brown the size 2-5 cm in oval shape.
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How to grow Jackfruit tree growing and care:
How to grow
Rich in nutrients, airy and drained soil, moist soil, prefer high humidity
How to care:
When trees young need to add fertilizer with high content of nitrogen, hummus, organic matter, cover the soil with mulch or dead leaves (especially when the tree is young)
What is the best way to start growing Jack tree:
Plant / Seed / Air layer / Cutting
Is it necessary to graft or use vegetative reproduction?
No, but can bearing better fruits, insure that will bear fruits, in hardiness zone 10b not all cultivars succeed to bear fruits need to have tree that can have fruits so better to graft
Difficulties/Problems with growing Jack tree:
the fruit if fallen is dangerous (heavy fruit), can’t stay without water, sensitive to floods
Planting – How to plant a Jackfruit tree:
Dig a hole as deep as the current root ball plus extra 50-100% bigger the plant small the percentage, put in the hole organic matter, hummus and dried leaves and mix it with some soil, put the tree and loos little bit the root ball above the hole, plant the tree and cover it and don’t push the soil too much strong but not too much lightly because it won’t be stable, after this put mulch to keep moist on soil, put water, for the next two weeks put every day (better in the morning) , better to take care that the tree will be stable, and if not support it with bamboo or a stick that it won’t fall.
Spring to summer in hardiness zone 10b (but better in the spring), spring to autumn in hardiness zone 11, all year in hardiness zone 12+
Pests and diseases in Jack tree:
Aphids, Ferrisia virgata, Phenacoccus solani, mealy bug
Autumn to winter, better directly after the fruits
How to prune:
Week branches, prune the tree as long as the tree strong enough (it can crush with the fruit), better to prune small branches in the shade especially if infected by Phenacoccus solani
Size of the plant:
9-21 m, 36-64 feet
Growth speed in Jack fruit:
Fast growing / Medium growing
Jack tree Irrigation Water Management:
Average amount of water / big amount of water (with good drainage)
Light conditions in optimal condition for growing Jack fruit tree:
Full Sun, it’s important for the tree to be in full sun, but when the tree is young possible to grow in half shade but will take longer to grow and to bear fruits
Is it possible to grow indoor as houseplant (indoor)?
Growing Jack tree is also possible in a planter /flowerpot / containers:
When does Jack tree bloom?
Spring / Summer
General information about the flower
Light green to yellow flower, the flowers looks like small fruits there are separate female and male flowers, the female bigger
Thinning / Deadheading of Jackfruit Blossom:
Until the tree can hold the fruits
Pollination is done by:
When does Jackfruit yield:
End of the summer, autumn, winter, depend on the cultivars, in hardiness zone 10b better to grow cultivars that bear fruits in the autumn, if the plant bear fruits in the winter it reduce the chance to get fruits
Pests or diseases in Jack fruit:
What can be done with big quantities of Jack fruit?
Eaten raw, juice, cook, jams
Work requirements on the Jack fruit:
Might need to cover the fruit with net
How long before a jackfruit tree bears fruit?
3-5 years, from seeds will take at least 5 years from grafted tree 3-4 years and in hardiness zone 10b it is colder in the winter so take longer to bear fruits
How to grow jackfruit tree from seed
Fresh seeds, every day that pass reduce the change to germinate, after five days the seeds might be not viable
How to save and care seeds until sowing:
Sow directly, but method to keep them until sowing: peat soil that was soaked in water, need to take out the extra water, put the seeds in the middle and cover fully the seeds and wrap it with plastic bag, after this cover the plastic bag with foil aluminum
In the tropical all the year, better in the spring to summer, but need to use the seeds fresh so directly sowing in green house in hardiness zone 10b
How to plant:
Better it in peat soil or other soil that absorb water and keep them, also in well ventilated soil
Better in separate pots, sowing to transplant 50*50cm (20*20 inches), sowing directly
Depth of Sowing:
3-5cm (1-2 inches) from the top of the seeds
Conditions for seeds germinate:
Moist soil, full sun, high humidity
Watering requires for Seeds:
Average amount of water / Big amount of water
1-3 weeks, less the seeds fresh take more time to germinate
Condition of seedling:
Moist soil with good drainage, (sensitive to overwater)