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Growing Calendula in Stockholm

🇸🇪 Zone 4 Planting Guide · Warm-summer humid continental climate

USDA Zone 4 190 frost-free days 45-65 days to harvest

Quick Answer: Growing Calendula in Stockholm

Yes, you can grow Calendula in Stockholm, SE! Plant during Mar, Apr, May, Aug, Sep for best results. Stockholm is in USDA Zone 4 with a Warm-summer humid continental climate, offering 190 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 Stockholm + Calendula

Stockholm's temperatures (-5°C to 22°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
Stockholm range -5°C to 22°C

Stockholm Climate Data

USDA Zone
4
Frost-Free
190days
Winter Low
-5°C
Summer High
22°C
Rainfall
531mm/yr
Climate
Dfb
Warm-summer humid continental

Calendula Planting Calendar for Stockholm

Green months show the best time to plant Calendula in Stockholm

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 Stockholm

Stockholm, SE is in USDA Hardiness Zone 4 with a Warm-summer humid continental climate (Köppen Dfb). With winter lows of -5°C and summer highs of 22°C, the growing season spans approximately 190 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 Stockholm, the best months to plant Calendula are March, April, May, August, September. 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 531mm of annual rainfall, Stockholm provides moderate natural moisture. This should be adequate for Calendula's water needs.

Other Plants That Grow in Stockholm

More plants you can grow alongside Calendula in Stockholm

Keep Exploring

Frequently Asked Questions

Can I grow calendula in Stockholm?

Yes! Calendula can be successfully grown in Stockholm, SE. Stockholm is in USDA Hardiness Zone 4 with a Warm-summer humid continental climate. The difficulty level for growing Calendula here is rated "easy". The best months to plant are March, April, May, August, September.

When should I plant calendula in Stockholm?

In Stockholm, the recommended planting months for Calendula are March, April, May, August, September. Stockholm has 190 frost-free days per year, with winter lows of -5°C and summer highs of 22°C. Calendula is frost tolerant, giving you more flexibility with planting dates.

How long does calendula take to grow in Stockholm?

Calendula typically takes 45-65 days from planting to harvest. In Stockholm's Warm-summer humid continental climate with 190 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 Stockholm?

Calendula can potentially be grown indoors in Stockholm 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, Aug, Sep outdoor planting window. Use containers with good drainage and moderate watering.

What month do I plant calendula in Stockholm?

Plant Calendula in Stockholm during March, April, May, August, September. These are the optimal months based on Stockholm's USDA Zone 4 climate, 190 frost-free days, and temperature range of -5°C to 22°C.

Is calendula hard to grow in Stockholm?

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

What grows well with calendula in Stockholm?

In Stockholm, 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 Stockholm's Zone 4 climate.

Does calendula need full sun in Stockholm?

Calendula requires full sun. In Stockholm, 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

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