Cush-cush Yam

Dioscorea trifida, Dioscoreaceae

Zones

9–12

Layer

Root

Lifespan

Perennial

Growth

Moderate

Guild Roles

ProducerGround CoverTrellis

Growing Conditions

Sun

Partial Shade (preferred)

Water

Moderate (established)Moderate (fruiting)High (seedling)

Soil pH

5.5 – 7

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Guaba RojaInga heterophylla

Nitrogen FixationShade Provision

Catclaw BlackbeadPithecelllobium unguis-cati

Nitrogen FixationPhysical Support

Barbados GooseberryPereskia aculeata

Physical SupportPest Deterrent

Elequeme Coral TreeErythrina berteroana

Nitrogen FixationPhysical Support

Silk Oil BeanPentaclethra filamentosa

Nitrogen FixationPhysical Support

Antagonistic Plants

Yam-leaf DalechampiaDalechampia dioscoreifolia

Both climbing plants compete for light and growing space with potential allelopathic effects

Lesser YamDioscorea esculenta

Closely related yam species compete for underground space and may share similar pathogens

Wild Pepper VinePiper magnificum

Wild Pepper Vine's aromatic compounds may deter pests from yam tubers but could also have mild allelopathic effects

Intoxicating YamDioscorea hispida

Related Dioscorea species compete for similar soil resources and root space, with potential allelopathic interference between tubers

Forest YamDioscorea decipiens

Same genus yams compete for similar soil nutrients and growing conditions when planted in proximity

Walker's CassavaManihot walkerae

Root crops compete for soil space and cassava may produce growth-inhibiting compounds

Uses

Functions

Starchy Tuber ProductionGround CoverSoil Loosening

Edible Parts

TubersYoung Shoots

Medicinal Uses

Digestive AidEnergy Source

Common Questions

What zones does Cush-cush Yam grow in?

Cush-cush Yam grows in USDA hardiness zones 9 through 12.

What are good companion plants for Cush-cush Yam?

Good companions for Cush-cush Yam include Guaba Roja, Catclaw Blackbead, Barbados Gooseberry, Elequeme Coral Tree, Silk Oil Bean.

Design guilds with Cush-cush Yam and see companion relationships visually.

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