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Fabaceae VINE OUTDOOR Placement Primary: Food

Jicama

Pachyrhizus erosus

Identified By Marcs

Jicama, scientifically known as Pachyrhizus erosus, is a species of vine native to Mexico and Central America, widely cultivated for its large, edible, tuberous roots. The plant grows as a vigorous herbaceous vine that can climb significantly if provided with adequate support, producing compound leaves and purple or white pea-like flowers. While the crisp, sweet, and starchy root is a popular culinary ingredient prized for its high water content and dietary fiber, the rest of the plant, including the seed pods, leaves, and vines, contains a toxic organic compound called rotenone. This compound makes the vegetative parts highly toxic to humans and animals, serving as a natural defense mechanism. Jicama thrives in warm, frost-free tropical and subtropical climates, requiring well-draining soils and abundant sunlight to develop its characteristic sweet tubers over a long growing season.

Also known as: Mexican yam bean Mexican turnip

Toxicity & Safety

Is Jicama toxic to pets?

Yes, toxic to pets.

Jicama plants contain high concentrations of a natural insecticide and toxin called rotenone, particularly in the seed pods, leaves, stems, and vines. If pets ingest any part of the green plant or the seeds, they can suffer from severe poisoning symptoms including vomiting, drooling, respiratory distress, neurological tremors, and potential paralysis. It is vital to keep household pets away from cultivating areas where jicama is grown.

Is Jicama toxic to humans?

Yes, toxic to humans.

While the underground tuber of the jicama plant is entirely safe and edible when properly peeled, all other aerial parts of the plant are extremely toxic to humans. The stems, leaves, flowers, and especially the mature seed pods contain rotenone, a potent neurotoxin and natural pesticide. Ingestion of these parts can cause severe gastrointestinal distress, respiratory failure, muscle tremors, and in extreme cases, fatality. Always harvest only the root and discard the rest of the foliage safely.

Is Jicama safe during pregnancy?

Generally considered safe during pregnancy.

Growth & Dimensions

Height 200 - 600 cm
Width 60 - 150 cm
Growth Rate Moderate
Care Level Easy
Lifespan Perennial

Ideal Environment

Temperature 15°C - 35°C
Sunlight Hours 6 - 10 hrs/day
Sun Exposure Full sun
Soil pH 6 - 7.5
Watering Interval 7 - 14 days
Humidity 40.00% - 80.00%
USDA Zone 9 - 11

Tropical and Subtropical Climates

Climate: Requires warm temperatures, high sunlight duration, and freedom from frost throughout its long growing cycle.

Soils: Loam Sandy loam Well-drained soil
Annual Rainfall: 800 - 1500 mm

Native Regions

Mexico
Central America

How to Care for Jicama

How should I handle sunlight requirements?

Jicama requires full sun exposure to thrive and develop robust tuberous roots. Ensure the plant is placed in a location where it receives at least six to eight hours of direct sunlight daily. Inadequate sunlight will result in weak, leggy vines and significantly reduced root yield.

How should I handle watering guidelines?

Water the jicama plant consistently, allowing the soil to dry slightly between watering sessions. While the plant can tolerate short dry spells once established, regular moisture is essential for producing juicy, crisp roots. Avoid waterlogging, which can cause root rot.

How to Propagate Jicama

How to propagate Jicama by seed?

To propagate jicama from seeds, wait until all danger of spring frost has completely passed and soil temperatures have warmed significantly. Plant the seeds directly into loose, well-draining soil at a depth of approximately 2 to 3 centimeters, maintaining a spacing of about 20 to 30 centimeters between seeds. Keep the soil evenly moist until germination occurs, which typically takes between one to two weeks. Provide a trellis or vertical support if you wish to manage the vine growth, though some growers prune the early flowers to redirect plant energy into root development.

Common Diseases & Pests of Jicama

What is Root Rot and how is it treated?

Fungal
Symptoms:

Infected plants display yellowing foliage, stunted growth, wilting despite adequate soil moisture, and dark, mushy lesions developing on the underground tuberous roots.

Treatment:

Remove severely affected plants immediately to prevent the spread of fungal spores. Improve soil drainage and avoid overwatering in subsequent planting cycles.

Prevention:

Plant jicama in loose, well-draining soil mixes, ensure proper spacing between individual plants for adequate airflow, and avoid excessive irrigation during rainy periods.

Properties & Benefits of Jicama

Bears Fruit

Uses & Health Benefits

What are the benefits of digestive health support in Jicama?

Jicama root is exceptionally rich in dietary fiber, specifically inulin, which functions as a prebiotic in the human digestive tract. Inulin promotes the growth of beneficial gut bacteria, enhances overall digestive efficiency, prevents constipation, and supports a healthy microbiome. Regular consumption of high-fiber foods like jicama also aids in regulating blood sugar levels and improving satiety, making it a valuable addition to balanced nutritional diets.

Precautions: Always ensure the outer brown skin and all green parts of the plant are completely removed before consumption, as only the inner tuber flesh is edible and safe.

Key Nutrients / Compounds

Vitamin C rich in 20.2 mg / 100g
Dietary Fiber high 4.9 g / 100g

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