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Growing Nasturtium in Canberra

🇦🇺 Zone 6 Planting Guide · Oceanic / Marine west coast climate

USDA Zone 6 220 frost-free days 35-52 days to harvest

Quick Answer: Growing Nasturtium in Canberra

Yes, you can grow Nasturtium in Canberra, AU! Plant during Oct, Nov, Dec for best results. Canberra is in USDA Zone 6 with a Oceanic / Marine west coast climate, offering 220 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 Canberra + Nasturtium

Canberra's climate requires careful timing. Winter lows (0°C) drop below Nasturtium's minimum (5°C), so avoid cold months. Follow the recommended planting months for success.

Nasturtium tolerates 5°C to 30°C
Optimal: 15°C - 25°C
Canberra range 0°C to 28°C

Canberra Climate Data

USDA Zone
6
Frost-Free
220days
Winter Low
0°C
Summer High
28°C
Rainfall
616mm/yr
Climate
Cfb
Oceanic / Marine west coast

Nasturtium Planting Calendar for Canberra

Green months show the best time to plant Nasturtium in Canberra

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 Canberra.

How to Grow Nasturtium in Canberra

Canberra, AU is in USDA Hardiness Zone 6 with a Oceanic / Marine west coast climate (Köppen Cfb). With winter lows of 0°C and summer highs of 28°C, the growing season spans approximately 220 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 Canberra, the best months to plant Nasturtium are October, November, December. 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 616mm of annual rainfall, Canberra provides moderate natural moisture. This should be adequate for Nasturtium's water needs.

Other Plants That Grow in Canberra

More plants you can grow alongside Nasturtium in Canberra

Keep Exploring

Frequently Asked Questions

Can I grow nasturtium in Canberra?

Yes! Nasturtium can be successfully grown in Canberra, AU. Canberra is in USDA Hardiness Zone 6 with a Oceanic / Marine west coast climate. The difficulty level for growing Nasturtium here is rated "easy". The best months to plant are October, November, December.

When should I plant nasturtium in Canberra?

In Canberra, the recommended planting months for Nasturtium are October, November, December. Canberra has 220 frost-free days per year, with winter lows of 0°C and summer highs of 28°C. Since Nasturtium is not frost tolerant, make sure to plant after the last frost date.

How long does nasturtium take to grow in Canberra?

Nasturtium typically takes 35-52 days from planting to harvest. In Canberra's Oceanic / Marine west coast climate with 220 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 Canberra?

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

What month do I plant nasturtium in Canberra?

Plant Nasturtium in Canberra during October, November, December. These are the optimal months based on Canberra's USDA Zone 6 climate, 220 frost-free days, and temperature range of 0°C to 28°C.

Is nasturtium hard to grow in Canberra?

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

What grows well with nasturtium in Canberra?

In Canberra, 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 Canberra's Zone 6 climate.

Does nasturtium need full sun in Canberra?

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