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Growing Nasturtium in Nagoya

🇯🇵 Zone 6 Planting Guide · Humid subtropical climate

USDA Zone 6 280 frost-free days 35-52 days to harvest

Quick Answer: Growing Nasturtium in Nagoya

Yes, you can grow Nasturtium in Nagoya, JP! Plant during Feb, Mar, Apr, May for best results. Nagoya is in USDA Zone 6 with a Humid subtropical climate, offering 280 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

Moderate Match Nagoya + Nasturtium

Nagoya's climate requires careful timing. Winter lows (0°C) drop below Nasturtium's minimum (5°C), so avoid cold months. Summer highs (33°C) exceed Nasturtium's maximum (30°C), so plant early or provide shade. Follow the recommended planting months for success.

Nasturtium tolerates 5°C to 30°C
Optimal: 15°C - 25°C
Nagoya range 0°C to 33°C

Nagoya Climate Data

USDA Zone
6
Frost-Free
280days
Winter Low
0°C
Summer High
33°C
Rainfall
1535mm/yr
Climate
Cfa
Humid subtropical

Nasturtium Planting Calendar for Nagoya

Green months show the best time to plant Nasturtium in Nagoya

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

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

easy

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 Nagoya.

How to Grow Nasturtium in Nagoya

Nagoya, JP is in USDA Hardiness Zone 6 with a Humid subtropical climate (Köppen Cfa). With winter lows of 0°C and summer highs of 33°C, the growing season spans approximately 280 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 Nagoya, the best months to plant Nasturtium are February, March, April, May. 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.

Nagoya receives 1535mm 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 Nagoya

More plants you can grow alongside Nasturtium in Nagoya

Keep Exploring

Frequently Asked Questions

Can I grow nasturtium in Nagoya?

Yes! Nasturtium can be successfully grown in Nagoya, JP. Nagoya is in USDA Hardiness Zone 6 with a Humid subtropical climate. The difficulty level for growing Nasturtium here is rated "easy". The best months to plant are February, March, April, May.

When should I plant nasturtium in Nagoya?

In Nagoya, the recommended planting months for Nasturtium are February, March, April, May. Nagoya has 280 frost-free days per year, with winter lows of 0°C and summer highs of 33°C. Since Nasturtium is not frost tolerant, make sure to plant after the last frost date.

How long does nasturtium take to grow in Nagoya?

Nasturtium typically takes 35-52 days from planting to harvest. In Nagoya's Humid subtropical climate with 280 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 Nagoya?

Nasturtium can potentially be grown indoors in Nagoya with proper conditions. It requires full sun to partial shade (2-4 hours of indirect light). Indoor growing extends your season beyond the Feb, Mar, Apr, May outdoor planting window. Use containers with good drainage and low watering.

What month do I plant nasturtium in Nagoya?

Plant Nasturtium in Nagoya during February, March, April, May. These are the optimal months based on Nagoya's USDA Zone 6 climate, 280 frost-free days, and temperature range of 0°C to 33°C.

Is nasturtium hard to grow in Nagoya?

Nasturtium is rated "easy" to grow in Nagoya. This is a great choice for beginners — it is forgiving and adapts well to this climate. The climate match for Nasturtium in Nagoya is Moderate.

What grows well with nasturtium in Nagoya?

In Nagoya, 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 Nagoya's Zone 6 climate.

Does nasturtium need full sun in Nagoya?

Nasturtium requires full sun to partial shade. Nasturtium tolerates lower light. In Nagoya, a spot with filtered or indirect light for 2-4 hours works well.

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

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