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Vegetable Full Sun Regular water

Yacon

Written by the GrowByCity Editorial Team · Updated April 2026
2 min read

Andean root with sweet, crunchy, juicy flesh. A warmth-loving plant that does best between 15°C and 25°C, yacon adapts well to tropical and subtropical conditions but cannot tolerate frost. Give it full sun (6-8 hours of direct light daily) and regular watering to keep soil consistently moist, and expect to harvest in roughly 180-240 days. Popular with home gardeners for its reliable yields and straightforward growing requirements.

Harvest 180-240 days
Temp Range 5°C — 30°C

Quick Answer: How to Grow Yacon

Yacon takes 180-240 days to harvest. It grows best in 15–25°C with full sun and regular watering. Yacon is not frost tolerant — wait until after the last frost to plant. It can be grown in 350 cities worldwide.

Find the best time to plant Yacon in your city →

Growing Requirements

☀️
Sun
Full Sun
💧
Water
Regular
❄️
Frost
Sensitive
📅
Harvest
180-240 days

Temperature Range

15-25°C
-10°C 45°C
Optimal: 15–25°C Tolerates: 5–30°C
Tropical suitable: Yes
Cities growing: 350 of 350

Growing Tips

💡

Expert Tips

Plant crown pieces. Harvest after frost kills tops. Wait until soil warms to at least 15°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Quick Facts

  • Grows in 350 of 350 cities
  • Available in 7 regions worldwide
  • Temperature range: 5°C to 30°C
  • Optimal growing: 15°C to 25°C
  • Harvest in 180-240 days

Did You Know?

  • 🌱 Yacon loves the heat! It thrives in tropical and subtropical climates year-round.
  • 🌱 Yacon needs at least 6-8 hours of direct sunlight daily for optimal growth.

Step-by-Step Growing Guide

Yacon (Smallanthus sonchifolius) is an Andean perennial grown as an annual in temperate climates. It requires fertile, well-draining soil with a pH of 6.0–7.5. Plant rhizome crowns — the reddish, compact propagation crowns from the base of the previous year's plant (not the edible storage tubers) — in a full-sun position after the last frost when soil reaches 15°C. Space plants 80–100 cm apart in rows 1.2 metres apart; plants reach 1.5–2.5 metres tall and need substantial space. Water regularly — yacon has a large leaf area that loses significant moisture, though established plants have some drought tolerance. Feed monthly with a balanced fertiliser; high nitrogen early in the season promotes the large leaf canopy needed to fuel tuber development. Mound soil up around the base as the season progresses to protect the developing crown and tubers. The tops will be killed by the first autumn frost, signalling harvest time.

Common Pests & Problems

Yacon has very few significant pest problems, part of its appeal as a low-maintenance crop. Aphids may colonise young growth; treat with water or insecticidal soap. Wireworms (Agriotes spp.) can tunnel into tubers in soils with high grass history — rotate away from grass leys and incorporate beneficial nematodes if wireworm pressure is known. Slugs target young shoots after planting; protect with iron phosphate pellets. In humid conditions, Botrytis grey mould can affect foliage — improve spacing for airflow. Root rot in waterlogged soils occurs occasionally; ensure drainage is excellent, particularly at the crown level which is most vulnerable.

Harvest & Storage

Harvest yacon after the first frost kills the tops — this is the signal that the plant has completed starch-to-fructooligosaccharide conversion in the tubers. Carefully dig around the plant at 30–40 cm distance with a fork, lifting the entire root ball. Separate the edible storage tubers (large, brown-skinned, juicy) from the reddish propagation crowns (save these for next year's planting). Sun-cure the tubers for 1–2 weeks, exposing them to sunlight to convert some starch to additional sugars — the sweetness intensifies significantly during this curing period. Store uncured tubers in a cool, frost-free location for up to 2 months; cured tubers last 3–4 months. Eat fresh, raw like a fruit, or use in salads and stir-fries.

Popular Varieties

Smallanthus sonchifolius is the only species in cultivation; formal named cultivars are not widely available in most Western markets. Andean landraces vary considerably in tuber colour (ranging from white and yellow to purple-fleshed), sweetness, and yield. White-fleshed types are most commonly sold in Europe and North America. Purple-fleshed yacon selections from Bolivia and Peru are increasingly available from specialist suppliers and have a distinctive fruity, plum-like flavour in addition to the characteristic sweet crunchy texture. Japanese yacon breeding programmes have selected high-yielding, disease-tolerant strains adapted to temperate climates; these strains (sometimes labelled 'Japanese yacon') are among the best performers outside the Andes.

Where to Grow Yacon

Yacon can be grown in 350 cities across 7 regions worldwide

🌍

Europe

80 cities
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Asia

79 cities
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North America

78 cities
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Africa

39 cities
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South America

39 cities
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Oceania

19 cities
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Middle East

16 cities

🌍 Europe (80 cities)

City Level JanFebMarAprMayJunJulAugSepOctNovDec
Aarhus, DK medium
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Amsterdam, NL medium
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Ankara, TR medium
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Antalya, TR medium
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Athens, GR medium
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Barcelona, ES medium
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Bari, IT medium
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Belgrade, RS medium
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Bergen, NO medium
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Berlin, DE medium
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Bilbao, ES medium
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Bologna, IT medium
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Bordeaux, FR medium
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Bratislava, SK medium
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Brussels, BE medium
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Bucharest, RO medium
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Budapest, HU medium
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Catania, IT medium
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Cologne, DE medium
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Copenhagen, DK medium
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Corfu, GR medium
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Cork, IE medium
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Dublin, IE medium
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Dubrovnik, HR medium
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Edinburgh, GB medium
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Florence, IT medium
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Genoa, IT medium
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Glasgow, GB medium
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Hamburg, DE medium
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Helsinki, FI medium
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Heraklion, GR medium
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Istanbul, TR medium
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Izmir, TR medium
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Krakow, PL medium
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Kyiv, UA medium
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Limassol, CY medium
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Lisbon, PT medium
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Ljubljana, SI medium
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London, GB medium
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Lyon, FR medium
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Madrid, ES medium
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Malaga, ES medium
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Marseille, FR medium
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Milan, IT medium
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Munich, DE medium
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Naples, IT medium
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Nice, FR medium
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Nicosia, CY medium
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Oslo, NO medium
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Palermo, IT medium
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Paris, FR medium
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Porto, PT medium
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Poznan, PL medium
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Prague, CZ medium
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Reykjavik, IS medium
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Riga, LV medium
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Rome, IT medium
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Seville, ES medium
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Sofia, BG medium
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Split, HR medium
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Stockholm, SE medium
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Strasbourg, FR medium
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Stuttgart, DE medium
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Tallinn, EE medium
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Thessaloniki, GR medium
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Tirana, AL medium
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Toulouse, FR medium
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Turin, IT medium
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Turku, FI medium
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Valencia, ES medium
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Valletta, MT medium
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Verona, IT medium
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Vienna, AT medium
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Vilnius, LT medium
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Warsaw, PL medium
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Zagreb, HR medium
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Zurich, CH medium
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🌏 Asia (79 cities)

City Level JanFebMarAprMayJunJulAugSepOctNovDec
Ahmedabad, IN medium
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Almaty, KZ medium
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Bali, ID medium
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Bandung, ID medium
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Bangalore, IN medium
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Bangkok, TH medium
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Beijing, CN medium
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Busan, KR medium
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Cebu, PH medium
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Chandigarh, IN medium
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Chengdu, CN medium
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Chennai, IN medium
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Chiang Mai, TH medium
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Chittagong, BD medium
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Chongqing, CN medium
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Coimbatore, IN medium
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Colombo, LK medium
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Da Nang, VN medium
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Dalian, CN medium
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Davao, PH medium
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Delhi, IN medium
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Dhaka, BD medium
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Dharan, NP medium
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Fukuoka, JP medium
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Galle, LK medium
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Guangzhou, CN medium
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Hangzhou, CN medium
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Hanoi, VN medium
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Harbin, CN medium
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Ho Chi Minh City, VN medium
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Hong Kong, HK medium
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Hyderabad, IN medium
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Incheon, KR medium
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Indore, IN medium
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Islamabad, PK medium
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Jaipur, IN medium
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Jakarta, ID medium
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Jeju, KR medium
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Johor Bahru, MY medium
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Karachi, PK medium
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Kathmandu, NP medium
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Kochi, IN medium
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Kolkata, IN medium
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Kuala Lumpur, MY medium
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Kunming, CN medium
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Kyoto, JP medium
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Lahore, PK medium
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Lucknow, IN medium
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Manila, PH medium
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Mumbai, IN medium
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Nagoya, JP medium
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Nanjing, CN medium
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Nha Trang, VN medium
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Okinawa, JP medium
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Osaka, JP medium
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Pattaya, TH medium
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Penang, MY medium
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Phnom Penh, KH medium
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Pune, IN medium
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Sapporo, JP medium
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Seoul, KR medium
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Shanghai, CN medium
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Shenzhen, CN medium
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Siem Reap, KH medium
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Singapore, SG medium
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Surabaya, ID medium
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Surat, IN medium
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Taipei, TW medium
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Tashkent, UZ medium
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Tbilisi, GE medium
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Tokyo, JP medium
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Ulaanbaatar, MN medium
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Varanasi, IN medium
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Vientiane, LA medium
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Visakhapatnam, IN medium
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Wuhan, CN medium
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Xi'an, CN medium
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Xiamen, CN medium
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Yangon, MM medium
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🌎 North America (78 cities)

City Level JanFebMarAprMayJunJulAugSepOctNovDec
Albuquerque, US medium
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Anchorage, US medium
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Atlanta, US medium
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Austin, US medium
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Baltimore, US medium
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Baton Rouge, US medium
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Boise, US medium
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Boston, US medium
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Bridgetown, BB medium
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Buffalo, US medium
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Calgary, CA medium
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Cancun, MX medium
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Charleston, US medium
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Charlotte, US medium
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Chattanooga, US medium
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Chicago, US medium
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Denver, US medium
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Des Moines, US medium
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Detroit, US medium
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Edmonton, CA medium
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El Paso, US medium
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Fargo, US medium
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Fresno, US medium
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Guadalajara, MX medium
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Halifax, CA medium
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Hartford, US medium
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Havana, CU medium
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Honolulu, US medium
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Houston, US medium
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Jacksonville, US medium
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Kansas City, US medium
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Kingston, JM medium
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Knoxville, US medium
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Las Vegas, US medium
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Little Rock, US medium
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Los Angeles, US medium
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Louisville, US medium
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Lubbock, US medium
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Madison, US medium
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Memphis, US medium
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Mexico City, MX medium
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Miami, US medium
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Milwaukee, US medium
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Minneapolis, US medium
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Monterrey, MX medium
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Montreal, CA medium
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Nashville, US medium
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New Orleans, US medium
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New York, US medium
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Oaxaca, MX medium
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Oklahoma City, US medium
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Omaha, US medium
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Ottawa, CA medium
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Panama City, PA medium
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Phoenix, US medium
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Pittsburgh, US medium
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Portland, US medium
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Puebla, MX medium
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Quebec City, CA medium
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Raleigh, US medium
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Richmond, US medium
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Sacramento, US medium
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Salt Lake City, US medium
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San Diego, US medium
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San Francisco, US medium
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San Jose, CR medium
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Santo Domingo, DO medium
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Saskatoon, CA medium
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Savannah, US medium
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Seattle, US medium
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Spokane, US medium
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St. Louis, US medium
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Tampa, US medium
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Toronto, CA medium
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Tucson, US medium
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Vancouver, CA medium
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Victoria, CA medium
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Winnipeg, CA medium
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🌍 Africa (39 cities)

City Level JanFebMarAprMayJunJulAugSepOctNovDec
Abidjan, CI medium
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Accra, GH medium
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Addis Ababa, ET medium
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Algiers, DZ medium
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Antananarivo, MG medium
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Arusha, TZ medium
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Bamako, ML medium
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Bloemfontein, ZA medium
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Cairo, EG medium
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Cape Town, ZA medium
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Casablanca, MA medium
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Dakar, SN medium
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Dar es Salaam, TZ medium
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Douala, CM medium
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Durban, ZA medium
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Entebbe, UG medium
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Fez, MA medium
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Freetown, SL medium
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Harare, ZW medium
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Johannesburg, ZA medium
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Kampala, UG medium
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Kigali, RW medium
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Kinshasa, CD medium
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Lagos, NG medium
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Libreville, GA medium
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Lilongwe, MW medium
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Lome, TG medium
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Luanda, AO medium
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Lusaka, ZM medium
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Maputo, MZ medium
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Marrakech, MA medium
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Mombasa, KE medium
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Nairobi, KE medium
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Ouagadougou, BF medium
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Port Louis, MU medium
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Pretoria, ZA medium
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Tunis, TN medium
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Windhoek, NA medium
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Zanzibar, TZ medium
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🌎 South America (39 cities)

City Level JanFebMarAprMayJunJulAugSepOctNovDec
Arequipa, PE medium
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Asuncion, PY medium
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Barranquilla, CO medium
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Belem, BR medium
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Bogota, CO medium
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Brasilia, BR medium
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Buenos Aires, AR medium
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Cali, CO medium
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Campinas, BR medium
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Caracas, VE medium
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Cartagena, CO medium
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Concepcion, CL medium
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Cordoba, AR medium
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Curitiba, BR medium
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Cusco, PE medium
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Fortaleza, BR medium
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Georgetown, GY medium
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Goiania, BR medium
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Guayaquil, EC medium
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La Paz, BO medium
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Lima, PE medium
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Manaus, BR medium
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Medellin, CO medium
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Mendoza, AR medium
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Montevideo, UY medium
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Paramaribo, SR medium
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Port of Spain, TT medium
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Porto Alegre, BR medium
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Quito, EC medium
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Recife, BR medium
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Rio de Janeiro, BR medium
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Rosario, AR medium
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Salvador, BR medium
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Santa Cruz, BO medium
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Santiago, CL medium
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Sao Paulo, BR medium
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Sucre, BO medium
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Trujillo, PE medium
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Valparaiso, CL medium
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🌊 Oceania (19 cities)

City Level JanFebMarAprMayJunJulAugSepOctNovDec
Adelaide, AU medium
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Alice Springs, AU medium
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Auckland, NZ medium
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Brisbane, AU medium
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Cairns, AU medium
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Canberra, AU medium
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Christchurch, NZ medium
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Darwin, AU medium
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Dunedin, NZ medium
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Gold Coast, AU medium
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Hamilton, NZ medium
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Hobart, AU medium
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Melbourne, AU medium
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Noumea, NC medium
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Perth, AU medium
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Suva, FJ medium
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Sydney, AU medium
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Townsville, AU medium
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Wellington, NZ medium
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🕌 Middle East (16 cities)

City Level JanFebMarAprMayJunJulAugSepOctNovDec
Abu Dhabi, AE medium
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Amman, JO medium
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Baghdad, IQ medium
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Beirut, LB medium
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Doha, QA medium
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Dubai, AE medium
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Erbil, IQ medium
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Jeddah, SA medium
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Kuwait City, KW medium
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Manama, BH medium
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Muscat, OM medium
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Riyadh, SA medium
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Sana'a, YE medium
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Tabriz, IR medium
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Tehran, IR medium
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Tel Aviv, IL medium
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When should I plant yacon in my city?

The best time to plant yacon depends on your local climate zone. It thrives in temperatures between 15°C and 25°C. Wait until after the last frost in your area. Check your city's planting calendar on GrowByCity for exact dates.

Can I grow yacon in winter?

Yacon is not frost tolerant and cannot survive winter outdoors in most temperate climates. In tropical areas (USDA Zones 10+), it may grow year-round.

Get Yacon Seeds & Plants

Ready to start growing? Find Yacon seeds and starter plants online.

Shop on Burpee Search on Amazon

People Also Search For

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Cucumber

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Frequently Asked Questions about Yacon

When should I plant yacon?

The best time to plant yacon depends on your local climate. Yacon grows best in temperatures between 15°C and 25°C (can tolerate 5°C to 30°C). Yacon is not frost tolerant, so wait until after the last frost in your area. Check your city's planting calendar on GrowByCity for exact planting months.

Can yacon grow in tropical climates?

Yes! Yacon can grow in tropical climates. It's successfully grown in tropical cities like Abidjan, Abu Dhabi, Accra. Yacon requires full sun and regular watering.

How long does yacon take to grow?

Yacon typically takes 180-240 days from planting to harvest. It requires full sun and regular watering. Plant crown pieces. Harvest after frost kills tops. Wait until soil warms to at least 15°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Find the Best Time to Plant Yacon

See the planting calendar for Yacon in these popular cities:

London, GBMumbai, INNew York, USParis, FRSingapore, SGSydney, AUTokyo, JPToronto, CA

Last updated: March 2026 · Climate data from NOAA, FAO, USDA

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