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Growing Nasturtium in Windhoek

🇳🇦 Zone 8 Planting Guide · Hot semi-arid climate

USDA Zone 8 320 frost-free days 35-52 days to harvest

Quick Answer: Growing Nasturtium in Windhoek

Yes, you can grow Nasturtium in Windhoek, NA! Plant during Aug, Sep, Oct, Nov for best results. Windhoek is in USDA Zone 8 with a Hot semi-arid climate, offering 320 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

Good Match Windhoek + Nasturtium

Windhoek's temperatures (6°C to 30°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.

Nasturtium tolerates 5°C to 30°C
Optimal: 15°C - 25°C
Windhoek range 6°C to 30°C

Windhoek Climate Data

USDA Zone
8
Frost-Free
320days
Winter Low
6°C
Summer High
30°C
Rainfall
361mm/yr
Climate
BSh
Hot semi-arid

Nasturtium Planting Calendar for Windhoek

Green months show the best time to plant Nasturtium in Windhoek

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 Windhoek.

How to Grow Nasturtium in Windhoek

Windhoek, NA is in USDA Hardiness Zone 8 with a Hot semi-arid climate (Köppen BSh). With winter lows of 6°C and summer highs of 30°C, the growing season spans approximately 320 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 Windhoek, the best months to plant Nasturtium are August, September, October, November. 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.

Windhoek receives only 361mm of annual rainfall, so consistent irrigation will be essential for growing Nasturtium successfully.

Other Plants That Grow in Windhoek

More plants you can grow alongside Nasturtium in Windhoek

Keep Exploring

Frequently Asked Questions

Can I grow nasturtium in Windhoek?

Yes! Nasturtium can be successfully grown in Windhoek, NA. Windhoek is in USDA Hardiness Zone 8 with a Hot semi-arid climate. The difficulty level for growing Nasturtium here is rated "easy". The best months to plant are August, September, October, November.

When should I plant nasturtium in Windhoek?

In Windhoek, the recommended planting months for Nasturtium are August, September, October, November. Windhoek has 320 frost-free days per year, with winter lows of 6°C and summer highs of 30°C. Since Nasturtium is not frost tolerant, make sure to plant after the last frost date.

How long does nasturtium take to grow in Windhoek?

Nasturtium typically takes 35-52 days from planting to harvest. In Windhoek's Hot semi-arid climate with 320 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 Windhoek?

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

What month do I plant nasturtium in Windhoek?

Plant Nasturtium in Windhoek during August, September, October, November. These are the optimal months based on Windhoek's USDA Zone 8 climate, 320 frost-free days, and temperature range of 6°C to 30°C.

Is nasturtium hard to grow in Windhoek?

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

What grows well with nasturtium in Windhoek?

In Windhoek, 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 Windhoek's Zone 8 climate.

Does nasturtium need full sun in Windhoek?

Nasturtium requires full sun to partial shade. Nasturtium tolerates lower light. In Windhoek, 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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