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🥬 Vegetable medium

Growing Kohlrabi in Tehran

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

USDA Zone 6 240 frost-free days 45-60 days to harvest

Quick Answer: Growing Kohlrabi in Tehran

Yes, you can grow Kohlrabi in Tehran, IR! Plant during Jan, Feb, Mar, Sep, Oct 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 medium, and Kohlrabi takes 45-60 days to harvest. Kohlrabi needs full sun and regular watering.

Climate Match Analysis

Moderate Match Tehran + Kohlrabi

Tehran's climate requires careful timing. Winter lows (-1°C) drop below Kohlrabi's minimum (0°C), so avoid cold months. Summer highs (36°C) exceed Kohlrabi's maximum (24°C), so plant early or provide shade. Follow the recommended planting months for success.

Kohlrabi tolerates 0°C to 24°C
Optimal: 10°C - 20°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

Kohlrabi Planting Calendar for Tehran

Green months show the best time to plant Kohlrabi in Tehran

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

Kohlrabi Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

45-60

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Kohlrabi

Harvest when tennis-ball sized. Larger ones become woody. 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.

Frost tolerance: Kohlrabi is frost tolerant — you can plant earlier in spring.

How to Grow Kohlrabi 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. Kohlrabi grows well with some gardening knowledge in this climate.

Kohlrabi thrives in temperatures between 10°C and 20°C, requiring full sun and regular watering. In Tehran, the best months to plant Kohlrabi are January, February, March, September, October. Since Kohlrabi can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 45-60 days after planting.

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

Other Plants That Grow in Tehran

More plants you can grow alongside Kohlrabi in Tehran

Keep Exploring

Frequently Asked Questions

Can I grow kohlrabi in Tehran?

Yes! Kohlrabi 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 Kohlrabi here is rated "medium". The best months to plant are January, February, March, September, October.

When should I plant kohlrabi in Tehran?

In Tehran, the recommended planting months for Kohlrabi are January, February, March, September, October. Tehran has 240 frost-free days per year, with winter lows of -1°C and summer highs of 36°C. Kohlrabi is frost tolerant, giving you more flexibility with planting dates.

How long does kohlrabi take to grow in Tehran?

Kohlrabi typically takes 45-60 days from planting to harvest. In Tehran's Cold semi-arid climate with 240 frost-free days, you have plenty of time to grow Kohlrabi to maturity. Harvest when tennis-ball sized. Larger ones become woody. 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.

Can I grow kohlrabi indoors in Tehran?

Kohlrabi 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 Jan, Feb, Mar, Sep, Oct outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant kohlrabi in Tehran?

Plant Kohlrabi in Tehran during January, February, March, September, October. 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 kohlrabi hard to grow in Tehran?

Kohlrabi is rated "medium" to grow in Tehran. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Kohlrabi in Tehran is Moderate.

What grows well with kohlrabi in Tehran?

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

Kohlrabi 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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