Growing Nasturtium in Antananarivo
🇲🇬 Zone 9 Planting Guide · Subtropical highland climate
Quick Answer: Growing Nasturtium in Antananarivo
Yes, you can grow Nasturtium in Antananarivo, MG! Plant during Jul, Aug, Sep, Oct for best results. Antananarivo is in USDA Zone 9 with a Subtropical highland climate, offering 345 frost-free days per year. The difficulty level is easy, and Nasturtium takes 35-52 days to harvest. Nasturtium needs full sun to partial shade and low watering.
Climate Match Analysis
Antananarivo's temperatures (10°C to 26°C) are within the tolerable range for Nasturtium (5°C to 30°C), though not always in the optimal zone (15°C to 25°C). Plant during recommended months for best results.
Antananarivo Climate Data
Nasturtium Planting Calendar for Antananarivo
Green months show the best time to plant Nasturtium in Antananarivo
Nasturtium Growing Requirements
Sunlight
Full Sun to Partial Shade
2-4 hours direct sunlight
Water
Low
Drought tolerant, water sparingly
Days to Harvest
35-52
From planting to first harvest
Difficulty
Great for beginners
💡 Growing Tips for Nasturtium
Poor soil produces more flowers. Seeds are large and easy for kids. Wait until soil warms to at least 15°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Overwatering is the most common mistake. Let soil dry out between waterings and ensure drainage is excellent.
Frost tolerance: Nasturtium is NOT frost tolerant — wait until after the last frost in Antananarivo.
How to Grow Nasturtium in Antananarivo
Antananarivo, MG is in USDA Hardiness Zone 9 with a Subtropical highland climate (Köppen Cwb). With winter lows of 10°C and summer highs of 26°C, the growing season spans approximately 345 frost-free days. Nasturtium is one of the easiest plants to grow in this climate.
Nasturtium thrives in temperatures between 15°C and 25°C, requiring full sun to partial shade and low watering. In Antananarivo, the best months to plant Nasturtium are July, August, September, October. Nasturtium is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 35-52 days after planting.
Antananarivo receives 1390mm of annual rainfall, which provides good natural moisture for Nasturtium. Be careful not to overwater — the natural rainfall may be sufficient.
Other Plants That Grow in Antananarivo
More plants you can grow alongside Nasturtium in Antananarivo
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Frequently Asked Questions
Can I grow nasturtium in Antananarivo?
Yes! Nasturtium can be successfully grown in Antananarivo, MG. Antananarivo is in USDA Hardiness Zone 9 with a Subtropical highland climate. The difficulty level for growing Nasturtium here is rated "easy". The best months to plant are July, August, September, October.
When should I plant nasturtium in Antananarivo?
In Antananarivo, the recommended planting months for Nasturtium are July, August, September, October. Antananarivo has 345 frost-free days per year, with winter lows of 10°C and summer highs of 26°C. Since Nasturtium is not frost tolerant, make sure to plant after the last frost date.
How long does nasturtium take to grow in Antananarivo?
Nasturtium typically takes 35-52 days from planting to harvest. In Antananarivo's Subtropical highland climate with 345 frost-free days, you have plenty of time to grow Nasturtium to maturity. Poor soil produces more flowers. Seeds are large and easy for kids. Wait until soil warms to at least 15°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Overwatering is the most common mistake. Let soil dry out between waterings and ensure drainage is excellent.
Can I grow nasturtium indoors in Antananarivo?
Nasturtium can potentially be grown indoors in Antananarivo with proper conditions. It requires full sun to partial shade (2-4 hours of indirect light). Indoor growing extends your season beyond the Jul, Aug, Sep, Oct outdoor planting window. Use containers with good drainage and low watering.
What month do I plant nasturtium in Antananarivo?
Plant Nasturtium in Antananarivo during July, August, September, October. These are the optimal months based on Antananarivo's USDA Zone 9 climate, 345 frost-free days, and temperature range of 10°C to 26°C.
Is nasturtium hard to grow in Antananarivo?
Nasturtium is rated "easy" to grow in Antananarivo. This is a great choice for beginners — it is forgiving and adapts well to this climate. The climate match for Nasturtium in Antananarivo is Good.
What grows well with nasturtium in Antananarivo?
In Antananarivo, you can grow many companion plants alongside Nasturtium. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Antananarivo's Zone 9 climate.
Does nasturtium need full sun in Antananarivo?
Nasturtium requires full sun to partial shade. Nasturtium tolerates lower light. In Antananarivo, a spot with filtered or indirect light for 2-4 hours works well.