Growing Green Onion in Chiang Mai
🇹🇭 Zone 11 Planting Guide · Tropical savanna climate
Quick Answer: Growing Green Onion in Chiang Mai
Yes, you can grow Green Onion in Chiang Mai, TH! Plant during Nov, Dec, Jan, Feb, Mar 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 easy, and Green Onion takes 20-30 days to harvest. Green Onion needs full sun and regular watering.
Climate Match Analysis
Chiang Mai's climate requires careful timing. Summer highs (36°C) exceed Green Onion's maximum (28°C), so plant early or provide shade. Follow the recommended planting months for success.
Chiang Mai Climate Data
Green Onion Planting Calendar for Chiang Mai
Green months show the best time to plant Green Onion in Chiang Mai
Green Onion Growing Requirements
Sunlight
Full Sun
6+ hours direct sunlight
Water
Regular
Consistent moisture, 1-2 inches/week
Days to Harvest
20-30
From planting to first harvest
Difficulty
Great for beginners
💡 Growing Tips for Green Onion
Can regrow from store-bought roots in water. Succession plant every 2 weeks. 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: Green Onion is frost tolerant — you can plant earlier in spring.
How to Grow Green Onion 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. Green Onion is one of the easiest plants to grow in this climate.
Green Onion thrives in temperatures between 10°C and 22°C, requiring full sun and regular watering. In Chiang Mai, the best months to plant Green Onion are November, December, January, February, March. Since Green Onion can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 20-30 days after planting.
Chiang Mai receives 1200mm of annual rainfall, which provides good natural moisture for Green Onion. Supplement with additional watering during dry spells.
Other Plants That Grow in Chiang Mai
More plants you can grow alongside Green Onion in Chiang Mai
Keep Exploring
Frequently Asked Questions
Can I grow green onion in Chiang Mai?
Yes! Green Onion 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 Green Onion here is rated "easy". The best months to plant are November, December, January, February, March.
When should I plant green onion in Chiang Mai?
In Chiang Mai, the recommended planting months for Green Onion are November, December, January, February, March. Chiang Mai has 365 frost-free days per year, with winter lows of 15°C and summer highs of 36°C. Green Onion is frost tolerant, giving you more flexibility with planting dates.
How long does green onion take to grow in Chiang Mai?
Green Onion typically takes 20-30 days from planting to harvest. In Chiang Mai's Tropical savanna climate with 365 frost-free days, you have plenty of time to grow Green Onion to maturity. Can regrow from store-bought roots in water. Succession plant every 2 weeks. 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 green onion indoors in Chiang Mai?
Green Onion 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 Nov, Dec, Jan, Feb, Mar outdoor planting window. Use containers with good drainage and regular watering.
What month do I plant green onion in Chiang Mai?
Plant Green Onion in Chiang Mai during November, December, January, February, March. 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 green onion hard to grow in Chiang Mai?
Green Onion is rated "easy" to grow in Chiang Mai. This is a great choice for beginners — it is forgiving and adapts well to this climate. The climate match for Green Onion in Chiang Mai is Moderate.
What grows well with green onion in Chiang Mai?
In Chiang Mai, you can grow many companion plants alongside Green Onion. 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 green onion need full sun in Chiang Mai?
Green Onion 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.