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Andean Walnut

Juglans neotropicafam. Juglandaceae
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Juglans neotropica (Andean Walnut) — botanical photograph
Pl. 0E21 — Juglans neotropica
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Overview

The Andean Walnut (Juglans neotropica) is a deciduous tree native to the mountainous regions of Colombia, Ecuador, Peru, and Venezuela. It is a tall tree, growing up to 25 meters in height, and is well-suited to habitats that receive full sun and are moist, thriving in soil that ranges from light (sandy) to heavy (clay). This tree is valued for both its edible seeds and its medicinal properties, making it a versatile plant in its native range. The Andean Walnut is known for its adaptability, which allows it to grow in various soil types and moisture conditions, making it a reliable choice for cultivation in diverse environments. Its edible seeds are a local food source, providing a nutritious addition to the diet. Additionally, the tree has documented medicinal uses, though specific benefits and applications should be approached with caution. In cultivation, the Andean Walnut can be used for its lumber, oil, and tannin, and it can also serve as a fire starter. It is adaptable to containers, making it suitable for gardens and landscapes. The tree's introduction to the Galápagos Islands further highlights its versatility and potential for use in different contexts. While the tree is hardy in zones 10-12, it requires consistent moisture to thrive.

Quick answers

What is Andean Walnut?

The Andean Walnut (Juglans neotropica) is a deciduous tree native to the mountainous regions of Colombia, Ecuador, Peru, and Venezuela.

Compare with:California Walnut→Heartseed Walnut→Manchurian Walnut→all comparisons →
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Growingconditions · propagation · uses
V

Cultivation

Andean Walnut thrives in full sun and requires moist soil that can be light (sandy), medium, or heavy (clay). It is hardy in zones 10-12, making it suitable for warmer climates. The tree grows to a height of 25 meters and produces edible seeds. For successful cultivation, ensure the soil remains consistently moist while providing ample sunlight.
Light
Full sun
Water
Moist
Soil
Light (sandy), Medium, Heavy (clay)
Hardiness
10-12
Mature size
25.0 m tall
For first-time growers

How to grow Andean Walnut for the first time

8steps

Start with planting an Andean Walnut in a sunny spot, as it thrives in full sun and moist soil.

  1. 1

    What you'll need

    A young Andean Walnut tree or seed.

  2. 2

    Best time to plant

    Plant in spring when the last frost has passed.

  3. 3

    Soil and container prep

    Ensure soil is well-draining, light (sandy), medium, or heavy (clay) with a pH between 6.0-7.5.

  4. 4

    Sowing or transplanting

    Transplant young trees or sow seeds directly in the ground after danger of frost has passed.

  5. 5

    First two weeks

    Water regularly to keep soil moist but not waterlogged, and monitor for pests and diseases.

  6. 6

    Ongoing care

    Provide full sun exposure, regular watering, and occasional pruning to maintain shape.

  7. 7

    Harvest or pruning

    Prune in late winter before new growth starts to remove dead or diseased branches.

  8. 8

    Common mistakes

    Overwatering, planting in poor soil, neglecting sun exposure, and not providing enough space for the tree's eventual size.

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Edible & utility

Edible parts:Seed
Edible uses: Oil
Other uses:Fire starterContainersDyeLumberoilRootstockTannin
Contextrange · companions · related
VII

Distribution

4 native · 1 introduced
Distribution across1 continent· 4 native· 1 introduced
Americas4 regions
native (4)ColombiaEcuadorPeruVenezuela
Broader regions
introduced:Galápagos
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Specimen gallery

1 image
Juglans neotropica (Andean Walnut) — botanical photograph
Andean Walnut (Juglans neotropica)
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See also

8 related
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Explore further

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