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IIIFolio · plant profile№ 9897medicinal · edible
Data provenancePermapeopleTreflePFAFeditorially reviewedreviewed 7 Jul 2026methodology → read
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Yellow Yam

Dioscorea cayennensisfam. Dioscoreaceae
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Dioscorea cayennensis (Yellow Yam) — botanical photograph
Pl. 9897 — Dioscorea cayennensis
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Overview

Yellow Yam, scientifically known as Dioscorea cayennensis, is a perennial plant that thrives in full to partial sun and prefers moist, light (sandy) to medium soil. Native to tropical regions, it can grow up to 10 meters tall. This plant is both edible and medicinal, with its leaves and roots being the primary parts used. Its adaptability to various lighting conditions makes it a versatile addition to gardens or agricultural settings. One distinctive feature of Yellow Yam is its rapid growth, which can quickly cover large areas. Another notable characteristic is its light requirement, making it suitable for environments ranging from full sun to partial shade.

Quick answers

What is Yellow Yam?

Yellow Yam, scientifically known as Dioscorea cayennensis, is a perennial plant that thrives in full to partial sun and prefers moist, light (sandy) to medium soil. Native to tropical regions, it can grow up to 10 meters tall.

Compare with:Yam→Dioscorea tokoro→all comparisons →
IV·b

Mixology suggestions

2 drafts
Editorial drafts. These pairings are AI-suggested from traditional herbal lore. Always verify with a qualified herbalist before brewing.
Evening Calm
sleep
tea
Traditional bedtime infusion.
Stomach Ease
digestion
decoction
Historically used for digestive issues.
Growingconditions · propagation · uses
V

Cultivation

Yellow Yam thrives in full to partial sun and prefers moist, well-draining soil that is light (sandy) or medium-textured. It is hardy in temperate regions with a range of 10-12 USDA zones and grows as a perennial. This plant can reach heights of up to 10 meters and produces edible leaves and roots. Ensure the soil remains consistently moist, especially during the growing season, for optimal growth.
Light
Full sun, Partial sun/shade
Water
Moist
Soil
Light (sandy), Medium
Hardiness
10-12
Life cycle
Perennial
Mature size
10.0 m tall
For first-time growers

How to grow Yellow Yam for the first time

7steps

Start with Yellow Yam as a simple, rewarding project for beginners.

  1. 1

    What you'll need

    Seeds or small tubers, potting mix, containers if planting in pots.

  2. 2

    Best time to plant

    Plant in spring when the soil is warm and moist.

  3. 3

    Soil and container prep

    Use a light, well-draining soil. Containers should be at least 15 cm deep.

  4. 4

    Sowing or transplanting

    Plant seeds 2-3 cm deep or place tubers just below the surface.

  5. 5

    First two weeks

    Keep the soil consistently moist and provide partial shade to avoid stress.

  6. 6

    Ongoing care

    Water regularly, especially during dry spells. Provide full sun for best growth.

  7. 7

    Harvest or pruning

    Prune vines as needed to maintain shape and prevent overcrowding.

VI

Edible & utility

Edible parts:LeavesRoot
Edible uses: Tea
Contextrange · companions · related
IX

Specimen gallery

1 image
Dioscorea cayennensis (Yellow Yam) — botanical photograph
Yellow Yam (Dioscorea cayennensis)
X

See also

2 related

Plants you might compare or use together — scored by shared family (Dioscoreaceae), common use cases, and growing requirements.

same family · Dioscoreaceae
Botanical relatives — often share phytochemistry + growing needs.
XI

Explore further

Companion planting
Compare with similar plants
Growing zone
XII

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