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🥬 Vegetable hard

Growing Corn in Tehran

🇮🇷 Zone 6 Planting Guide · Cold semi-arid climate

USDA Zone 6 240 frost-free days 60-100 days to harvest

Quick Answer: Growing Corn in Tehran

Yes, you can grow Corn 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 hard, and Corn takes 60-100 days to harvest. Corn needs full sun and regular watering.

Climate Match Analysis

Moderate Match Tehran + Corn

Tehran's climate requires careful timing. Winter lows (-1°C) drop below Corn's minimum (10°C), so avoid cold months. Summer highs (36°C) exceed Corn's maximum (35°C), so plant early or provide shade. Follow the recommended planting months for success.

Corn tolerates 10°C to 35°C
Optimal: 18°C - 30°C
Tehran range -1°C to 36°C

Tehran Climate Data

USDA Zone
6
Frost-Free
240days
Winter Low
-1°C
Summer High
36°C
Rainfall
228mm/yr
Climate
BSk
Cold semi-arid

Corn Planting Calendar for Tehran

Green months show the best time to plant Corn in Tehran

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Plant Corn Not recommended

Corn Growing Requirements

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Sunlight

Full Sun

6+ hours direct sunlight

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Water

Regular

Consistent moisture, 1-2 inches/week

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Days to Harvest

60-100

From planting to first harvest

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Difficulty

hard

For experienced growers

💡 Growing Tips for Corn

Minimum 4x4 block for pollination. Heavy feeder -- needs nitrogen-rich soil. 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.

Frost tolerance: Corn is NOT frost tolerant — wait until after the last frost in Tehran.

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Companion Plants for Corn

Find out which plants grow best alongside Corn — and which to keep apart

How to Grow Corn 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. Corn requires more experience to grow successfully in this climate.

Corn thrives in temperatures between 18°C and 30°C, requiring full sun and regular watering. In Tehran, the best months to plant Corn are March, April, May, June. Corn is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 60-100 days after planting.

Tehran receives only 228mm of annual rainfall, so consistent irrigation will be essential for growing Corn successfully.

Other Plants That Grow in Tehran

More plants you can grow alongside Corn in Tehran

Keep Exploring

Frequently Asked Questions

Can I grow corn in Tehran?

Yes! Corn 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 Corn here is rated "hard". The best months to plant are March, April, May, June.

When should I plant corn in Tehran?

In Tehran, the recommended planting months for Corn 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 Corn is not frost tolerant, make sure to plant after the last frost date.

How long does corn take to grow in Tehran?

Corn typically takes 60-100 days from planting to harvest. In Tehran's Cold semi-arid climate with 240 frost-free days, you have plenty of time to grow Corn to maturity. Minimum 4x4 block for pollination. Heavy feeder -- needs nitrogen-rich soil. 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.

Can I grow corn indoors in Tehran?

Corn 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 regular watering.

What month do I plant corn in Tehran?

Plant Corn 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 corn hard to grow in Tehran?

Corn is rated "hard" to grow in Tehran. This is challenging in this climate. Experienced growers will have the best success with careful attention to temperature and moisture. The climate match for Corn in Tehran is Moderate.

What grows well with corn in Tehran?

In Tehran, you can grow many companion plants alongside Corn. 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 corn need full sun in Tehran?

Corn 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.

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

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