Growing Sunflower in Tehran
🇮🇷 Zone 6 Planting Guide · Cold semi-arid climate
Quick Answer: Growing Sunflower in Tehran
Yes, you can grow Sunflower in Tehran, IR! Plant during Mar, Apr, May, Jun for best results. Tehran is in USDA Zone 6 with a Cold semi-arid climate, offering 240 frost-free days per year. The difficulty level is easy, and Sunflower takes 70-100 days to harvest. Sunflower needs full sun and moderate watering.
Climate Match Analysis
Tehran's climate requires careful timing. Winter lows (-1°C) drop below Sunflower's minimum (8°C), so avoid cold months. Summer highs (36°C) exceed Sunflower's maximum (35°C), so plant early or provide shade. Follow the recommended planting months for success.
Tehran Climate Data
Sunflower Planting Calendar for Tehran
Green months show the best time to plant Sunflower in Tehran
Sunflower Growing Requirements
Sunlight
Full Sun
6+ hours direct sunlight
Water
Moderate
Keep soil consistently moist
Days to Harvest
70-100
From planting to first harvest
Difficulty
Great for beginners
💡 Growing Tips for Sunflower
Sow directly -- taproots don't transplant well. Great for kids to grow. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.
Frost tolerance: Sunflower is NOT frost tolerant — wait until after the last frost in Tehran.
Companion Plants for Sunflower
Find out which plants grow best alongside Sunflower — and which to keep apart
Grow Sunflower Indoors
No garden? Learn how to grow Sunflower indoors with our complete guide
How to Grow Sunflower in Tehran
Tehran, IR is in USDA Hardiness Zone 6 with a Cold semi-arid climate (Köppen BSk). With winter lows of -1°C and summer highs of 36°C, the growing season spans approximately 240 frost-free days. Sunflower is one of the easiest plants to grow in this climate.
Sunflower thrives in temperatures between 18°C and 28°C, requiring full sun and moderate watering. In Tehran, the best months to plant Sunflower are March, April, May, June. Sunflower is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 70-100 days after planting.
Tehran receives only 228mm of annual rainfall, so consistent irrigation will be essential for growing Sunflower successfully.
Other Plants That Grow in Tehran
More plants you can grow alongside Sunflower in Tehran
Keep Exploring
Frequently Asked Questions
Can I grow sunflower in Tehran?
Yes! Sunflower can be successfully grown in Tehran, IR. Tehran is in USDA Hardiness Zone 6 with a Cold semi-arid climate. The difficulty level for growing Sunflower here is rated "easy". The best months to plant are March, April, May, June.
When should I plant sunflower in Tehran?
In Tehran, the recommended planting months for Sunflower are March, April, May, June. Tehran has 240 frost-free days per year, with winter lows of -1°C and summer highs of 36°C. Since Sunflower is not frost tolerant, make sure to plant after the last frost date.
How long does sunflower take to grow in Tehran?
Sunflower typically takes 70-100 days from planting to harvest. In Tehran's Cold semi-arid climate with 240 frost-free days, you have plenty of time to grow Sunflower to maturity. Sow directly -- taproots don't transplant well. Great for kids to grow. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.
Can I grow sunflower indoors in Tehran?
Sunflower can potentially be grown indoors in Tehran with proper conditions. It requires full sun (6+ hours of direct light — a south-facing window or grow lights recommended). Indoor growing extends your season beyond the Mar, Apr, May, Jun outdoor planting window. Use containers with good drainage and moderate watering.
What month do I plant sunflower in Tehran?
Plant Sunflower in Tehran during March, April, May, June. These are the optimal months based on Tehran's USDA Zone 6 climate, 240 frost-free days, and temperature range of -1°C to 36°C.
Is sunflower hard to grow in Tehran?
Sunflower is rated "easy" to grow in Tehran. This is a great choice for beginners — it is forgiving and adapts well to this climate. The climate match for Sunflower in Tehran is Moderate.
What grows well with sunflower in Tehran?
In Tehran, you can grow many companion plants alongside Sunflower. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Tehran's Zone 6 climate.
Does sunflower need full sun in Tehran?
Sunflower requires full sun. In Tehran, provide at least 6 hours of direct sunlight daily. During peak summer heat, some afternoon shade can help prevent heat stress.