Skip to content
GrowByCity
Flower Full Sun Regular water

Petunia

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

Prolific trailing annual. A warmth-loving plant that does best between 15°C and 25°C, petunia adapts well to tropical and subtropical conditions but cannot tolerate frost. 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. Valued as much for its cut-flower potential as for its garden presence — stems last well in a vase.

Harvest 55-70 days
Temp Range 5°C — 32°C

Quick Answer: How to Grow Petunia

Petunia takes 55-70 days to harvest. It grows best in 15–25°C with full sun and regular watering. Petunia 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 Petunia in your city →

Growing Requirements

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

Temperature Range

15-25°C
-10°C 45°C
Optimal: 15–25°C Tolerates: 5–32°C
Tropical suitable: Yes
Cities growing: 350 of 350

Growing Tips

💡

Expert Tips

Deadhead or use self-cleaning varieties. Feed weekly for best blooms. 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 32°C
  • Optimal growing: 15°C to 25°C
  • Harvest in 55-70 days

Did You Know?

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

Step-by-Step Growing Guide

Petunias are tender perennials grown as warm-season annuals, ideal for hanging baskets, window boxes, and container displays. Start seeds indoors 10–12 weeks before last frost — they require light to germinate; press seeds on the surface of moist, fine-textured seed compost and keep at 24°C. Germination takes 10–12 days. More reliably, purchase transplants. After the last frost, plant in well-drained, moderately fertile soil with pH 6.0–7.0 in a full-sun location. Spacing depends on type: upright grandifloras 30cm; spreading/Wave types 30–90cm. Petunias are medium feeders — apply a slow-release balanced fertilizer at planting and supplement with liquid high-potassium feed every 1–2 weeks during peak flowering season. Water regularly but allow to partially dry between waterings. Deadhead grandifloras regularly; Multiflora types are more self-cleaning. Cut back trailing types by half midseason if they become leggy.

Common Pests & Problems

Botrytis blight (Botrytis cinerea) is the most common petunia problem in cool, wet weather — gray fuzzy mold on spent flowers that spreads to healthy tissue; remove dead flowers immediately and improve airflow around containers. Tobacco budworm (Chloridea virescens) is a devastating caterpillar pest that bores into flower buds from the inside, consuming them before they open — the primary pest of petunias in warm-climate gardens; apply Bt (Bacillus thuringiensis) spray at first sign of damage and inspect nightly with a flashlight. Petunia vein-clearing virus causes dramatic yellowing of veins in a striking but damaging pattern — aphid-transmitted with no cure; remove infected plants.

Harvest & Storage

Petunias are grown for ornamental bloom, not for harvest. To maximize and extend the blooming period, deadhead spent flowers continuously before they set seed — each seed pod formed signals the plant to reduce flower production. For seed saving (open-pollinated varieties only — not hybrids), allow selected blooms to fade naturally and form green capsules. Harvest dry capsules before they split, dry indoors, and store seeds in a cool, dry location. Petunia seeds are extremely small and dust-like — store in labeled paper envelopes inside a sealed container with silica gel.

Popular Varieties

"Wave" series revolutionized petunia use in containers — incredibly vigorous trailing types that spread 90–120cm, self-clean without deadheading, and bloom continuously without midseason shearing. "Supertunia" (Proven Winners) series are aggressive spreaders with a wider color range and exceptional heat tolerance — commercial basket standard. "Night Sky" is a stunning novelty variety with deep purple flowers randomly speckled with white dots mimicking a starfield — a real conversation piece. "Prism" series offers upright, compact plants with large flowers and excellent weather tolerance — outstanding for bedding and formal displays.

Where to Grow Petunia

Petunia can be grown in 350 cities across 7 regions worldwide

🌍

Europe

80 cities
🌏

Asia

79 cities
🌎

North America

78 cities
🌍

Africa

39 cities
🌎

South America

39 cities
🌊

Oceania

19 cities
🕌

Middle East

16 cities

🌍 Europe (80 cities)

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

🌏 Asia (79 cities)

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

🌎 North America (78 cities)

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

🌍 Africa (39 cities)

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

🌎 South America (39 cities)

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

🌊 Oceania (19 cities)

City Level JanFebMarAprMayJunJulAugSepOctNovDec
Adelaide, AU medium
✓
✓
✓
✓
Alice Springs, AU medium
✓
✓
✓
✓
Auckland, NZ medium
✓
✓
✓
✓
Brisbane, AU medium
✓
✓
✓
✓
Cairns, AU medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Canberra, AU medium
✓
✓
✓
Christchurch, NZ medium
✓
✓
✓
✓
Darwin, AU medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Dunedin, NZ medium
✓
✓
✓
Gold Coast, AU medium
✓
✓
✓
✓
Hamilton, NZ medium
✓
✓
✓
✓
Hobart, AU medium
✓
✓
✓
✓
Melbourne, AU medium
✓
✓
✓
✓
Noumea, NC medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Perth, AU medium
✓
✓
✓
✓
Suva, FJ medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Sydney, AU medium
✓
✓
✓
✓
Townsville, AU medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Wellington, NZ medium
✓
✓
✓
✓

🕌 Middle East (16 cities)

City Level JanFebMarAprMayJunJulAugSepOctNovDec
Abu Dhabi, AE medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Amman, JO medium
✓
✓
✓
✓
Baghdad, IQ medium
✓
✓
✓
✓
Beirut, LB medium
✓
✓
✓
✓
Doha, QA medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Dubai, AE medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Erbil, IQ medium
✓
✓
✓
✓
Jeddah, SA medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Kuwait City, KW medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Manama, BH medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Muscat, OM medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Riyadh, SA medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Sana'a, YE medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Tabriz, IR medium
✓
✓
✓
✓
Tehran, IR medium
✓
✓
✓
✓
Tel Aviv, IL medium
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓

When should I plant petunia in my city?

The best time to plant petunia 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 petunia in winter?

Petunia 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 Petunia Seeds & Plants

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

Shop on Burpee Search on Amazon

People Also Search For

how to grow petuniapetunia growing tipsbest soil for petuniapetunia planting seasonpetunia companion plantspetunia pests and diseases

Similar Growing Requirements

🥬

Tomato

Vegetable · Full Sun

18-27°C
🌿

Basil

Herb · Full Sun

20-30°C
🥬

Carrot

Vegetable · Full Sun

15-24°C
🥬

Pepper

Vegetable · Full Sun

20-30°C
🥬

Cucumber

Vegetable · Full Sun

20-30°C
🥬

Zucchini

Vegetable · Full Sun

18-27°C

Frequently Asked Questions about Petunia

When should I plant petunia?

The best time to plant petunia depends on your local climate. Petunia grows best in temperatures between 15°C and 25°C (can tolerate 5°C to 32°C). Petunia 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 petunia grow in tropical climates?

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

How long does petunia take to grow?

Petunia typically takes 55-70 days from planting to harvest. It requires full sun and regular watering. Deadhead or use self-cleaning varieties. Feed weekly for best blooms. 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 Petunia

See the planting calendar for Petunia in these popular cities:

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

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

Share: X Facebook Pinterest WhatsApp
See an error? Report it