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🥬 Vegetable hard

Growing Corn in Chiang Mai

🇹🇭 Zone 11 Planting Guide · Tropical savanna climate

USDA Zone 11 365 frost-free days 60-100 days to harvest

Quick Answer: Growing Corn in Chiang Mai

Yes, you can grow Corn in Chiang Mai, TH! Plant during Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec for best results. Chiang Mai is in USDA Zone 11 with a Tropical savanna climate, offering 365 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 Chiang Mai + Corn

Chiang Mai's climate requires careful timing. 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
Chiang Mai range 15°C to 36°C

Chiang Mai Climate Data

USDA Zone
11
Frost-Free
365days
Winter Low
15°C
Summer High
36°C
Rainfall
1200mm/yr
Climate
Aw
Tropical savanna

Corn Planting Calendar for Chiang Mai

Green months show the best time to plant Corn in Chiang Mai

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 Chiang Mai.

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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 Chiang Mai

Chiang Mai, TH is in USDA Hardiness Zone 11 with a Tropical savanna climate (Köppen Aw). With winter lows of 15°C and summer highs of 36°C, the growing season spans approximately 365 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 Chiang Mai, the best months to plant Corn are January, February, March, April, May, June, July, August, September, October, November, December. 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.

Chiang Mai receives 1200mm of annual rainfall, which provides good natural moisture for Corn. Supplement with additional watering during dry spells.

Other Plants That Grow in Chiang Mai

More plants you can grow alongside Corn in Chiang Mai

Keep Exploring

Frequently Asked Questions

Can I grow corn in Chiang Mai?

Yes! Corn can be successfully grown in Chiang Mai, TH. Chiang Mai is in USDA Hardiness Zone 11 with a Tropical savanna climate. The difficulty level for growing Corn here is rated "hard". The best months to plant are January, February, March, April, May, June, July, August, September, October, November, December.

When should I plant corn in Chiang Mai?

In Chiang Mai, the recommended planting months for Corn are January, February, March, April, May, June, July, August, September, October, November, December. Chiang Mai has 365 frost-free days per year, with winter lows of 15°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 Chiang Mai?

Corn typically takes 60-100 days from planting to harvest. In Chiang Mai's Tropical savanna climate with 365 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 Chiang Mai?

Corn can potentially be grown indoors in Chiang Mai 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, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant corn in Chiang Mai?

Plant Corn in Chiang Mai during January, February, March, April, May, June, July, August, September, October, November, December. These are the optimal months based on Chiang Mai's USDA Zone 11 climate, 365 frost-free days, and temperature range of 15°C to 36°C.

Is corn hard to grow in Chiang Mai?

Corn is rated "hard" to grow in Chiang Mai. 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 Chiang Mai is Moderate.

What grows well with corn in Chiang Mai?

In Chiang Mai, 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 Chiang Mai's Zone 11 climate.

Does corn need full sun in Chiang Mai?

Corn requires full sun. In Chiang Mai, 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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