This fast growing evergreen walnut species is from the relative calm and frost free sub tropical Andes. The advantage of the Andean walnut is that it is a walnut that may fruit in parts or all of the subtropics where no other walnut will fruit; it fruits well; it is self fertile; it comes into bearing from seed within about five or six years; and it has large nuts that are moderately well filled. The biggest disadvantage is that the nut does not fall free of the husk and 'clings' to the nut. This means the almost tennis ball sized 'fruit' (fleshy husk plus the 'nut' in the middle) have to be collected and piled up for the husk to rot off. The olivey green to brown fruits turn dark brown as the husk breaks down, and the fleshy part becomes black and soft and spongy. Once cleaned, the round golf-ball sized nuts can be dried. Their shell is very thick heavy, and they are not easy to open. Once open, the kernel is also difficult to remove from the shell. The kernel itself is blandly pleasant.
Plant Information or Specifications
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Subtropical, Warm Temperate
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Learn About Propagation Methods
Max Height (when in the ground with good conditions)
Plants required to Pollinate
2 compatible plants (Pollination Required)
Learn about Pollination
Can it Handle Frosts?
Amount of leaves in Winter?
All Leaves (Evergreen)
Is it a Dwarf Fruit Tree?
No (Full Size)
Time to Fruit/Flower/Harvest
Sun or Shade
Preferred Soil Type
June, July, August, September, October
Customer Comments on Andean Walnut
-4C is definitely the limit. to -3 you lose tips, at -4 you lose limbs. they reshoot each year but get ugly and diseased. | Reville - Tabulam, NSW 18-Nov-2007
Mine took a year to put its roots down but has just started to take off | Darrin - Tallebudgera Valley, 4228 07-Nov-2008
Mine survived the early heavy frosts (possibly to -8) is now mature and set first fruits- maybe 15 years after planting- they don't like having privet under them and improved once I weeded this out | Janelle Schafer - Tuntable Creek, NSW 21-Oct-2012
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