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🥬 Vegetable easy

Growing Green Onion in Port of Spain

🇹🇹 Zone 13 Planting Guide · Tropical savanna climate

USDA Zone 13 365 frost-free days 20-30 days to harvest

Quick Answer: Growing Green Onion in Port of Spain

Yes, you can grow Green Onion in Port of Spain, TT! Plant during Nov, Dec, Jan, Feb, Mar for best results. Port of Spain is in USDA Zone 13 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

Moderate Match Port of Spain + Green Onion

Port of Spain's climate requires careful timing. Summer highs (33°C) exceed Green Onion's maximum (28°C), so plant early or provide shade. Follow the recommended planting months for success.

Green Onion tolerates -2°C to 28°C
Optimal: 10°C - 22°C
Port of Spain range 22°C to 33°C

Port of Spain Climate Data

USDA Zone
13
Frost-Free
365days
Winter Low
22°C
Summer High
33°C
Rainfall
2100mm/yr
Climate
Aw
Tropical savanna

Green Onion Planting Calendar for Port of Spain

Green months show the best time to plant Green Onion in Port of Spain

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

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

easy

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 Port of Spain

Port of Spain, TT is in USDA Hardiness Zone 13 with a Tropical savanna climate (Köppen Aw). With winter lows of 22°C and summer highs of 33°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 Port of Spain, 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.

Port of Spain receives 2100mm of annual rainfall, which provides good natural moisture for Green Onion. Supplement with additional watering during dry spells.

Other Plants That Grow in Port of Spain

More plants you can grow alongside Green Onion in Port of Spain

Keep Exploring

Frequently Asked Questions

Can I grow green onion in Port of Spain?

Yes! Green Onion can be successfully grown in Port of Spain, TT. Port of Spain is in USDA Hardiness Zone 13 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 Port of Spain?

In Port of Spain, the recommended planting months for Green Onion are November, December, January, February, March. Port of Spain has 365 frost-free days per year, with winter lows of 22°C and summer highs of 33°C. Green Onion is frost tolerant, giving you more flexibility with planting dates.

How long does green onion take to grow in Port of Spain?

Green Onion typically takes 20-30 days from planting to harvest. In Port of Spain'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 Port of Spain?

Green Onion can potentially be grown indoors in Port of Spain 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 Port of Spain?

Plant Green Onion in Port of Spain during November, December, January, February, March. These are the optimal months based on Port of Spain's USDA Zone 13 climate, 365 frost-free days, and temperature range of 22°C to 33°C.

Is green onion hard to grow in Port of Spain?

Green Onion is rated "easy" to grow in Port of Spain. This is a great choice for beginners — it is forgiving and adapts well to this climate. The climate match for Green Onion in Port of Spain is Moderate.

What grows well with green onion in Port of Spain?

In Port of Spain, 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 Port of Spain's Zone 13 climate.

Does green onion need full sun in Port of Spain?

Green Onion requires full sun. In Port of Spain, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.

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

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