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Flower Full Sun Regular water

Sweet Pea Flower

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

Intensely fragrant climbing flower. Hardy enough to withstand light frosts down to -2°C, sweet pea flower performs best when daytime temperatures stay between 10°C and 20°C. Plant in a spot with full sun (6-8 hours of direct light daily) and provide regular watering to keep soil consistently moist. Expect blooms in approximately 55-70 days. Works beautifully in mixed borders, cottage gardens, or standalone containers on patios and balconies.

Harvest 55-70 days
Temp Range -2°C — 24°C
Frost Tolerant ❄

Quick Answer: How to Grow Sweet Pea Flower

Sweet Pea Flower takes 55-70 days to harvest. It grows best in 10–20°C with full sun and regular watering. Sweet Pea Flower is frost tolerant and can handle temperatures down to -2°C. It can be grown in 350 cities worldwide.

Find the best time to plant Sweet Pea Flower in your city →

Growing Requirements

☀️
Sun
Full Sun
💧
Water
Regular
❄️
Frost
Tolerant
📅
Harvest
55-70 days

Temperature Range

10-20°C
-10°C 45°C
Optimal: 10–20°C Tolerates: -2–24°C
Tropical suitable: No
Cities growing: 350 of 350

Growing Tips

💡

Expert Tips

Soak seeds overnight. Plant early -- they love cool weather. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. 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: -2°C to 24°C
  • Optimal growing: 10°C to 20°C
  • Harvest in 55-70 days

Did You Know?

  • 🌱 Sweet Pea Flower is frost-tolerant, meaning it can survive light frosts and even thrive in cooler temperatures.
  • 🌱 Sweet Pea Flower needs at least 6-8 hours of direct sunlight daily for optimal growth.

Step-by-Step Growing Guide

Sweet peas require cool conditions to perform — soil temperature at planting should be 45–65°F. They prefer a deeply prepared, humus-rich soil with pH 7.0–7.5; add garden lime if your soil is acidic. Soak seeds overnight in water or nick the hard coat with a nail file to improve germination rate, which otherwise can be erratic. Sow 1 inch deep, 3 inches apart, then thin to 6–8 inches. In mild climates, sow in autumn for spring flowering; in cold climates, sow in late winter indoors 4–6 weeks before last frost. Provide a trellis, netting, or brush sticks immediately — they grip with tendrils and climb 5–6 feet. Water deeply but infrequently, letting the top inch dry between waterings; sweet peas hate sitting in wet soil but need consistent moisture during flowering. Feed with high-potassium fertilizer (tomato feed) every 2 weeks once the first buds appear. Never let plants set seed — deadhead obsessively or cut armfuls for indoors.

Common Pests & Problems

Powdery mildew is endemic to sweet peas in warm, dry spells — it appears as white powder on older leaves and works upward. Improve airflow, water at the base, and apply potassium bicarbonate or sulfur at first sign. Aphids (particularly the black bean aphid) infest growing tips in spring, curling new leaves — apply insecticidal soap every 3–4 days for 2 weeks. Bud drop occurs when temperatures spike above 75°F, causing developing buds to abort before opening — sweet peas simply cannot flower in heat and the season ends; there is no fix beyond choosing earlier-sowing dates. Thrips cause silvery streaking on petals — treat with spinosad. Root rot follows overwatering or compacted, poorly drained soil — always ensure the planting trench has grit or sharp sand incorporated.

Harvest & Storage

Cut sweet peas daily — the more you cut, the more they produce. Harvest when the lowest two florets on a stem are just opening. Cut in the morning and plunge immediately into water. Remove no foliage — sweet pea stems are mostly bare, with tendrils. Vase life is 4–7 days; they do not last long cut, but the fragrance is extraordinary. Change water daily. For dried flowers, sweet peas do not preserve well — they are best enjoyed fresh or pressed for craft use.

Popular Varieties

'Matucana' is an heirloom bicolor of deep maroon and violet with the most intense fragrance of any sweet pea — the scent standard all others are measured against. 'Spencer' types (such as 'Spencer Ripple' mixes) offer large, frilly, waved flowers on long stems — the florist's choice for cut flower production. 'Lord Nelson' is a classic deep navy-blue sweet pea that holds color and fragrance well in cool conditions. 'Cupani' is the original species type, small-flowered but explosively fragrant, suited to cottage garden informality.

Where to Grow Sweet Pea Flower

Sweet Pea Flower 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
🕌

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 sweet pea flower in my city?

The best time to plant sweet pea flower depends on your local climate zone. It thrives in temperatures between 10°C and 20°C. Since sweet pea flower is frost tolerant, you can plant it before the last frost date. Check your city's planting calendar on GrowByCity for exact dates.

Can I grow sweet pea flower in winter?

Yes, sweet pea flower is frost tolerant and can handle temperatures down to -2°C. In many climates, it can be grown through winter with some protection.

Get Sweet Pea Flower Seeds & Plants

Ready to start growing? Find Sweet Pea Flower seeds and starter plants online.

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Frequently Asked Questions about Sweet Pea Flower

When should I plant sweet pea flower?

The best time to plant sweet pea flower depends on your local climate. Sweet Pea Flower grows best in temperatures between 10°C and 20°C (can tolerate -2°C to 24°C). Sweet Pea Flower is frost tolerant, so it can be planted earlier in spring or later in fall. Check your city's planting calendar on GrowByCity for exact planting months.

Can sweet pea flower grow in tropical climates?

Sweet Pea Flower is not well-suited for tropical climates. It prefers cooler conditions with temperatures between 10°C and 20°C. In tropical areas, it may bolt, fail to fruit, or suffer from heat stress. Consider growing it in cooler seasons or at higher elevations.

How long does sweet pea flower take to grow?

Sweet Pea Flower typically takes 55-70 days from planting to harvest. It requires full sun and regular watering. Soak seeds overnight. Plant early -- they love cool weather. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. 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 Sweet Pea Flower

See the planting calendar for Sweet Pea Flower 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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