Seed to Harvest Growing Guide
How to grow jicama
Grow crisp, sweet jicama roots by giving this tropical vine a long frost-free season, warm soil, full sun, steady moisture, and room to climb.
Crop family: Fabaceae
Before you begin
Jicama is a tropical vine grown for one edible storage root.
Jicama, also called yam bean, needs sustained warmth and enough time for its underground root to size. Choose loose, well-drained soil and plan for a vigorous vine that may reach 20 feet.
Build your jicama growing plan
Confirm the season, reserve vine space, and calculate seed.
Jicama is not a quick succession crop. Start with the longest reliable warm window your location can provide.
Jicama at a glance
The path from seed to harvest
Select a milestone to jump to the full instructions.
Stages 1–3
Start early enough, then plant after all frost danger.
Warmth is the limiting factor. In short-season areas, an indoor head start is often essential.
Choose the warmest practical site
Use full sun and loose sandy loam that drains freely. Raised beds can warm and drain faster in cool or heavy soils.
- Allow five to nine frost-free months for large roots from seed.
- Provide a trellis or substantial room for vines.
- Avoid low spots where water remains after rain.
Sow 1 inch deep
Direct sow after frost in long-season climates. Elsewhere, start about 8–10 weeks before transplanting in deep or biodegradable cells to reduce root disturbance.
Harden and transplant gently
Space plants 8–10 inches apart with 2–3 feet between rows. Set the root ball at the same depth and water immediately.
- Harden plants gradually for about a week.
- Install support before vines tangle.
- Keep cultivation shallow near developing roots.
- Mulch after the soil has warmed.
Stage 4
Grow the vine while directing energy underground
Steady moisture and restrained fertility support root development. Flower and pod removal is an important crop-specific task.
Water evenly
Keep the root zone consistently moist but never saturated. Deep watering is better than frequent surface sprinkling.
Feed lightly
Base fertility on a soil test. Too much nitrogen favors vines and leaves instead of the storage root.
Train vines
Guide vigorous vines onto strong support so leaves receive light and the bed remains accessible.
Pinch flowers
Remove flower clusters and pods as they appear so the plant directs more energy to the edible root.
Growth checkpoints
Know what healthy progress looks like.
Use development, weather, and root growth—not a fixed calendar alone.
Warm, active growth
New leaves expand without cold injury or prolonged wilting.
Train and mulch
Secure new growth loosely and conserve moisture after soil warms.
Pinch promptly
Remove flowers and never allow toxic pods to mature around children or pets.
Check root size
Feel for a firm shoulder at the soil line and plan to lift before freezing weather.
Stage 5
Diagnose jicama problems early
Open a symptom to compare what you see with the next practical check.
PestLeaf-feeding beetlesRagged holes, chewed margins, and slowed young plants
Scout seedlings and leaf undersides, remove beetles where practical, control weeds, and protect young plants with insect netting. Remove covers before vines need access for care and flower removal.
VirusMosaic symptomsMottled light and dark leaves, distortion, and reduced vigor
Aphids and mealybugs can spread mosaic viruses. Remove strongly symptomatic plants, manage vectors, sanitize tools, and control nearby weeds that can harbor viruses.
DiseaseCercospora leaf spotRound brown or gray lesions that expand across older foliage
Improve spacing and airflow, water at the soil line, remove heavily affected debris, rotate away from susceptible legumes, and use a labeled treatment early if local guidance recommends one.
Growing conditionRoot rot and waterloggingYellowing vines, soft dark root tissue, and stalled growth
Move future plantings to raised or better-drained soil, avoid overwatering, and never store damaged or soft roots. Severely rotted plants should be removed rather than eaten.
Stage 6
Lift firm roots before frost
Root size varies with season length. Harvest while roots are smooth, firm, and manageable rather than waiting through freezing weather.
- Cut: Remove vines at the soil line and discard all aboveground parts where people and animals cannot eat them.
- Lift: Loosen soil widely with a fork and raise the root without scraping or cutting it.
- Store: Keep sound roots around 55–59°F with moderate humidity. Extended cold below about 50°F can cause chilling injury.
Choose with purpose
Start with true jicama seed
Urban Farmer currently offers one verified jicama selection, so every shopping card below leads to the exact seed product instead of an unrelated filter.
Questions gardeners ask
Jicama growing FAQ
Quick answers for timing, training, harvest, safety, and storage.
How long does jicama take to grow?
Seed-grown plants commonly need five to nine warm months for sizeable roots. Heat, day length, soil, and variety all affect the final size.
Which parts of jicama are edible?
Only the peeled storage root is eaten. The vines, leaves, flowers, pods, and seeds contain toxic compounds and must not be consumed.
Should jicama be started indoors?
In short-season climates, start it about 8–10 weeks before the safe transplant date. Use deep individual cells and disturb roots as little as possible.
Can jicama be direct sown?
Yes, where the frost-free season is long and soil is already warm. Sow about 1 inch deep after frost danger has passed.
Does jicama need a trellis?
A trellis is strongly useful because vines can grow very long. Support keeps the bed manageable but does not change which part of the plant is edible.
Why should jicama flowers be removed?
Removing flowers and pods directs more plant energy toward the underground storage root and prevents toxic seed pods from developing.
How far apart should plants be spaced?
Space plants about 8–10 inches apart with rows 2–3 feet apart. Allow extra access space if vines will not be trained vertically.
Why is my jicama making vines but no large root?
The crop may need more warm time, more sun, looser soil, steadier moisture, less nitrogen, or more consistent flower removal.
How much water does jicama need?
Keep soil evenly moist, especially during active root enlargement, but never waterlog the bed. Drainage is as important as irrigation.
Can jicama tolerate frost?
No. It is frost tender. Harvest roots before freezing weather and do not transplant until frost danger has passed.
How do I know when jicama is ready?
Look for a firm, smooth root shoulder and sufficient season length. You may lift a smaller root before frost rather than risk freeze damage.
How should jicama be stored?
Keep undamaged roots near 55–59°F with moderate humidity. Refrigerators are usually colder than ideal for extended storage.
Can jicama be grown in a container?
Yes, but use a very large, deep container with loose mix, excellent drainage, sturdy support, and enough warm time for the root to expand.
Should the brown skin be eaten?
No. Peel away the fibrous brown skin and eat only the crisp white flesh inside.
Ready to plant?
Start jicama from verified seed.
Give this tropical root crop warm soil, a long season, steady moisture, and space to climb.