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Growing Nasturtium in Harare

🇿🇼 Zone 8 Planting Guide · Subtropical highland climate

USDA Zone 8 310 frost-free days 35-52 days to harvest

Quick Answer: Growing Nasturtium in Harare

Yes, you can grow Nasturtium in Harare, ZW! Plant during Aug, Sep, Oct, Nov for best results. Harare is in USDA Zone 8 with a Subtropical highland climate, offering 310 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 Harare + Nasturtium

Harare's temperatures (7°C to 27°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
Harare range 7°C to 27°C

Harare Climate Data

USDA Zone
8
Frost-Free
310days
Winter Low
7°C
Summer High
27°C
Rainfall
833mm/yr
Climate
Cwb
Subtropical highland

Nasturtium Planting Calendar for Harare

Green months show the best time to plant Nasturtium in Harare

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 Harare.

How to Grow Nasturtium in Harare

Harare, ZW is in USDA Hardiness Zone 8 with a Subtropical highland climate (Köppen Cwb). With winter lows of 7°C and summer highs of 27°C, the growing season spans approximately 310 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 Harare, 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.

With 833mm of annual rainfall, Harare provides moderate natural moisture. This should be adequate for Nasturtium's water needs.

Other Plants That Grow in Harare

More plants you can grow alongside Nasturtium in Harare

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Frequently Asked Questions

Can I grow nasturtium in Harare?

Yes! Nasturtium can be successfully grown in Harare, ZW. Harare is in USDA Hardiness Zone 8 with a Subtropical highland 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 Harare?

In Harare, the recommended planting months for Nasturtium are August, September, October, November. Harare has 310 frost-free days per year, with winter lows of 7°C and summer highs of 27°C. Since Nasturtium is not frost tolerant, make sure to plant after the last frost date.

How long does nasturtium take to grow in Harare?

Nasturtium typically takes 35-52 days from planting to harvest. In Harare's Subtropical highland climate with 310 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 Harare?

Nasturtium can potentially be grown indoors in Harare 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 Harare?

Plant Nasturtium in Harare during August, September, October, November. These are the optimal months based on Harare's USDA Zone 8 climate, 310 frost-free days, and temperature range of 7°C to 27°C.

Is nasturtium hard to grow in Harare?

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

What grows well with nasturtium in Harare?

In Harare, 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 Harare's Zone 8 climate.

Does nasturtium need full sun in Harare?

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