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Vegetable Full Sun Regular water

Winter Squash

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

Hard-shelled squash that stores for months. A warmth-loving plant that does best between 18°C and 28°C, winter squash 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 80-110 days. An excellent choice for beginner and experienced gardeners alike, thanks to its forgiving growing habits.

Harvest 80-110 days
Temp Range 12°C — 35°C

Quick Answer: How to Grow Winter Squash

Winter Squash takes 80-110 days to harvest. It grows best in 18–28°C with full sun and regular watering. Winter Squash 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 Winter Squash in your city →

Growing Requirements

☀️
Sun
Full Sun
💧
Water
Regular
❄️
Frost
Sensitive
📅
Harvest
80-110 days

Temperature Range

18-28°C
-10°C 45°C
Optimal: 18–28°C Tolerates: 12–35°C
Tropical suitable: Yes
Cities growing: 350 of 350

Growing Tips

💡

Expert Tips

Cure in sun for 10 days after harvest. Store in cool dry place for months. Wait until soil warms to at least 18°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: 12°C to 35°C
  • Optimal growing: 18°C to 28°C
  • Harvest in 80-110 days

Did You Know?

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

Step-by-Step Growing Guide

Winter squash flourishes in deep, fertile, well-draining soil with a pH of 6.0–6.8. Prepare hills or mounds 60 cm across with a generous bucket of compost and aged manure worked into each. Sow 3 seeds per hill at 2.5 cm depth after the last frost when soil reaches 18°C, thinning to the strongest plant. Space hills 2–3 metres apart for vining types; semi-bush types can be 1.2 metres. Water deeply and infrequently — 25–30 mm per week — applying directly to the root zone to keep foliage dry and reduce disease. Do not water overhead once fruit is set. Apply a balanced fertiliser at planting, then switch to a low-nitrogen, high-phosphorus formula at flowering to promote fruit development over vine growth. Foliar boron spray at bloom can improve fruit set. Pinch off small fruits at season's end to redirect energy to mature squash.

Common Pests & Problems

Powdery mildew (Podosphaera xanthii) is nearly universal on winter squash, coating leaves in white powder late in the season; choose resistant varieties and apply potassium bicarbonate or dilute neem oil at first sign. Squash vine borer (Melittia cucurbitae) is catastrophic — the moth lays eggs at the stem base and larvae tunnel inside, causing sudden wilt; wrap the lower 30 cm of main stem in aluminium foil as a physical barrier, and inject Bt into the stem if boring is detected. Cucumber beetles (Acalymma vittatum) spread bacterial wilt and chew foliage; use row covers until flowering and apply kaolin clay to deter adults. Squash bugs cluster under leaves, causing wilting; hand-pick egg masses from leaf undersides and destroy adults.

Harvest & Storage

Winter squash is mature when the skin resists fingernail puncture, the vine stem has dried and corked over, and the underside (ground spot) has turned cream or orange from white or green. Cut with 5–7 cm of stem attached — never break the stem off as this creates a rot entry. Cure at 27–32°C with high humidity for 10–14 days to harden the skin and heal any surface cuts; delicata and acorn are exceptions — do not cure these. After curing, store at 10–15°C in a cool, dry room. Butternut and Hubbard types store 4–6 months; properly cured Kabocha can last up to a year.

Popular Varieties

Butternut (Waltham Butternut) is the most popular home garden variety — tan-skinned with smooth, sweet, bright orange flesh that stores exceptionally well and resists squash vine borer better than most. Delicata is a cream-coloured striped heirloom with thin edible skin and sweet, chestnut-flavoured flesh; no need to peel and stores 3 months. Red Kuri (Uchiki Kuri) is a tear-drop shaped, deep red-orange Japanese type with a rich chestnut-like flavour and smooth, nearly fibreless flesh. Jarrahdale is a stunning blue-grey Cinderella-shaped Australian heirloom with dense, golden-orange flesh and excellent storage of 6–12 months.

Where to Grow Winter Squash

Winter Squash can be grown in 350 cities across 7 regions worldwide

🌍

Europe

80 cities
🌏

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
🕌

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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Frankfurt, DE medium
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Gdansk, PL medium
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Genoa, IT medium
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Glasgow, GB medium
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Gothenburg, SE 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 winter squash in my city?

The best time to plant winter squash depends on your local climate zone. It thrives in temperatures between 18°C and 28°C. Wait until after the last frost in your area. Check your city's planting calendar on GrowByCity for exact dates.

Can I grow winter squash in winter?

Winter Squash 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 Winter Squash Seeds & Plants

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

Shop on Burpee Search on Amazon

People Also Search For

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Similar Growing Requirements

🥬

Tomato

Vegetable · Full Sun

18-27°C
🌿

Basil

Herb · Full Sun

20-30°C
🥬

Lettuce

Vegetable · Partial Shade OK

10-20°C
🥬

Carrot

Vegetable · Full Sun

15-24°C
🥬

Pepper

Vegetable · Full Sun

20-30°C
🥬

Cucumber

Vegetable · Full Sun

20-30°C

Frequently Asked Questions about Winter Squash

When should I plant winter squash?

The best time to plant winter squash depends on your local climate. Winter Squash grows best in temperatures between 18°C and 28°C (can tolerate 12°C to 35°C). Winter Squash 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 winter squash grow in tropical climates?

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

How long does winter squash take to grow?

Winter Squash typically takes 80-110 days from planting to harvest. It requires full sun and regular watering. Cure in sun for 10 days after harvest. Store in cool dry place for months. Wait until soil warms to at least 18°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 Winter Squash

See the planting calendar for Winter Squash 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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