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🌻 Flower easy

Growing Nasturtium in Dublin

🇮🇪 Zone 7 Planting Guide · Oceanic / Marine west coast climate

USDA Zone 7 300 frost-free days 35-52 days to harvest

Quick Answer: Growing Nasturtium in Dublin

Yes, you can grow Nasturtium in Dublin, IE! Plant during Feb, Mar, Apr, May for best results. Dublin is in USDA Zone 7 with a Oceanic / Marine west coast climate, offering 300 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 Dublin + Nasturtium

Dublin's climate requires careful timing. Winter lows (2°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
Dublin range 2°C to 19°C

Dublin Climate Data

USDA Zone
7
Frost-Free
300days
Winter Low
2°C
Summer High
19°C
Rainfall
762mm/yr
Climate
Cfb
Oceanic / Marine west coast

Nasturtium Planting Calendar for Dublin

Green months show the best time to plant Nasturtium in Dublin

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 Dublin.

How to Grow Nasturtium in Dublin

Dublin, IE is in USDA Hardiness Zone 7 with a Oceanic / Marine west coast climate (Köppen Cfb). With winter lows of 2°C and summer highs of 19°C, the growing season spans approximately 300 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 Dublin, 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.

With 762mm of annual rainfall, Dublin provides moderate natural moisture. This should be adequate for Nasturtium's water needs.

Other Plants That Grow in Dublin

More plants you can grow alongside Nasturtium in Dublin

Keep Exploring

Frequently Asked Questions

Can I grow nasturtium in Dublin?

Yes! Nasturtium can be successfully grown in Dublin, IE. Dublin is in USDA Hardiness Zone 7 with a Oceanic / Marine west coast 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 Dublin?

In Dublin, the recommended planting months for Nasturtium are February, March, April, May. Dublin has 300 frost-free days per year, with winter lows of 2°C and summer highs of 19°C. Since Nasturtium is not frost tolerant, make sure to plant after the last frost date.

How long does nasturtium take to grow in Dublin?

Nasturtium typically takes 35-52 days from planting to harvest. In Dublin's Oceanic / Marine west coast climate with 300 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 Dublin?

Nasturtium can potentially be grown indoors in Dublin 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 Dublin?

Plant Nasturtium in Dublin during February, March, April, May. These are the optimal months based on Dublin's USDA Zone 7 climate, 300 frost-free days, and temperature range of 2°C to 19°C.

Is nasturtium hard to grow in Dublin?

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

What grows well with nasturtium in Dublin?

In Dublin, 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 Dublin's Zone 7 climate.

Does nasturtium need full sun in Dublin?

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