Skip to content
🌻 Flower easy

Growing Calendula in Reykjavik

🇮🇸 Zone 5 Planting Guide · Subpolar oceanic climate

USDA Zone 5 130 frost-free days 45-65 days to harvest

Quick Answer: Growing Calendula in Reykjavik

Yes, you can grow Calendula in Reykjavik, IS! Plant during Mar, Apr, May, Jul, Aug for best results. Reykjavik is in USDA Zone 5 with a Subpolar oceanic climate, offering 130 frost-free days per year. The difficulty level is easy, and Calendula takes 45-65 days to harvest. Calendula needs full sun and moderate watering.

Climate Match Analysis

Good Match Reykjavik + Calendula

Reykjavik's temperatures (-3°C to 13°C) are within the tolerable range for Calendula (-5°C to 28°C), though not always in the optimal zone (10°C to 22°C). Plant during recommended months for best results.

Calendula tolerates -5°C to 28°C
Optimal: 10°C - 22°C
Reykjavik range -3°C to 13°C

Reykjavik Climate Data

USDA Zone
5
Frost-Free
130days
Winter Low
-3°C
Summer High
13°C
Rainfall
799mm/yr
Climate
Cfc
Subpolar oceanic

Calendula Planting Calendar for Reykjavik

Green months show the best time to plant Calendula in Reykjavik

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

Calendula Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Moderate

Keep soil consistently moist

📅

Days to Harvest

45-65

From planting to first harvest

📊

Difficulty

easy

Great for beginners

💡 Growing Tips for Calendula

Deadhead for continuous blooms. Self-seeds readily. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

Frost tolerance: Calendula is frost tolerant — you can plant earlier in spring.

How to Grow Calendula in Reykjavik

Reykjavik, IS is in USDA Hardiness Zone 5 with a Subpolar oceanic climate (Köppen Cfc). With winter lows of -3°C and summer highs of 13°C, the growing season spans approximately 130 frost-free days. Calendula is one of the easiest plants to grow in this climate.

Calendula thrives in temperatures between 10°C and 22°C, requiring full sun and moderate watering. In Reykjavik, the best months to plant Calendula are March, April, May, July, August. Since Calendula can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 45-65 days after planting.

With 799mm of annual rainfall, Reykjavik provides moderate natural moisture. This should be adequate for Calendula's water needs.

Other Plants That Grow in Reykjavik

More plants you can grow alongside Calendula in Reykjavik

Keep Exploring

Frequently Asked Questions

Can I grow calendula in Reykjavik?

Yes! Calendula can be successfully grown in Reykjavik, IS. Reykjavik is in USDA Hardiness Zone 5 with a Subpolar oceanic climate. The difficulty level for growing Calendula here is rated "easy". The best months to plant are March, April, May, July, August.

When should I plant calendula in Reykjavik?

In Reykjavik, the recommended planting months for Calendula are March, April, May, July, August. Reykjavik has 130 frost-free days per year, with winter lows of -3°C and summer highs of 13°C. Calendula is frost tolerant, giving you more flexibility with planting dates.

How long does calendula take to grow in Reykjavik?

Calendula typically takes 45-65 days from planting to harvest. In Reykjavik's Subpolar oceanic climate with 130 frost-free days, you have enough time with good planning to grow Calendula to maturity. Deadhead for continuous blooms. Self-seeds readily. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

Can I grow calendula indoors in Reykjavik?

Calendula can potentially be grown indoors in Reykjavik with proper conditions. It requires full sun (6+ hours of direct light — a south-facing window or grow lights recommended). Indoor growing extends your season beyond the Mar, Apr, May, Jul, Aug outdoor planting window. Use containers with good drainage and moderate watering.

What month do I plant calendula in Reykjavik?

Plant Calendula in Reykjavik during March, April, May, July, August. These are the optimal months based on Reykjavik's USDA Zone 5 climate, 130 frost-free days, and temperature range of -3°C to 13°C.

Is calendula hard to grow in Reykjavik?

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

What grows well with calendula in Reykjavik?

In Reykjavik, you can grow many companion plants alongside Calendula. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Reykjavik's Zone 5 climate.

Does calendula need full sun in Reykjavik?

Calendula requires full sun. In Reykjavik, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.

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

See an error? Report it