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Growing Yarrow in Valletta

🇲🇹 Zone 9 Planting Guide · Hot-summer Mediterranean climate

USDA Zone 9 365 frost-free days 60-90 days to harvest

Quick Answer: Growing Yarrow in Valletta

Yes, you can grow Yarrow in Valletta, MT! Plant during Nov, Dec, Jan, Feb for best results. Valletta is in USDA Zone 9 with a Hot-summer Mediterranean climate, offering 365 frost-free days per year. The difficulty level is easy, and Yarrow takes 60-90 days to harvest. Yarrow needs full sun and low watering.

Climate Match Analysis

Good Match Valletta + Yarrow

Valletta's temperatures (10°C to 31°C) are within the tolerable range for Yarrow (-25°C to 32°C), though not always in the optimal zone (12°C to 24°C). Plant during recommended months for best results.

Yarrow tolerates -25°C to 32°C
Optimal: 12°C - 24°C
Valletta range 10°C to 31°C

Valletta Climate Data

USDA Zone
9
Frost-Free
365days
Winter Low
10°C
Summer High
31°C
Rainfall
553mm/yr
Climate
Csa
Hot-summer Mediterranean

Yarrow Planting Calendar for Valletta

Green months show the best time to plant Yarrow in Valletta

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

Yarrow Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Low

Drought tolerant, water sparingly

📅

Days to Harvest

60-90

From planting to first harvest

📊

Difficulty

easy

Great for beginners

💡 Growing Tips for Yarrow

Extremely drought-tolerant. Divide every 2-3 years. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Overwatering is the most common mistake. Let soil dry out between waterings and ensure drainage is excellent.

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

How to Grow Yarrow in Valletta

Valletta, MT is in USDA Hardiness Zone 9 with a Hot-summer Mediterranean climate (Köppen Csa). With winter lows of 10°C and summer highs of 31°C, the growing season spans approximately 365 frost-free days. Yarrow is one of the easiest plants to grow in this climate.

Yarrow thrives in temperatures between 12°C and 24°C, requiring full sun and low watering. In Valletta, the best months to plant Yarrow are November, December, January, February. Since Yarrow can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 60-90 days after planting.

With 553mm of annual rainfall, Valletta provides moderate natural moisture. This should be adequate for Yarrow's water needs.

Other Plants That Grow in Valletta

More plants you can grow alongside Yarrow in Valletta

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Frequently Asked Questions

Can I grow yarrow in Valletta?

Yes! Yarrow can be successfully grown in Valletta, MT. Valletta is in USDA Hardiness Zone 9 with a Hot-summer Mediterranean climate. The difficulty level for growing Yarrow here is rated "easy". The best months to plant are November, December, January, February.

When should I plant yarrow in Valletta?

In Valletta, the recommended planting months for Yarrow are November, December, January, February. Valletta has 365 frost-free days per year, with winter lows of 10°C and summer highs of 31°C. Yarrow is frost tolerant, giving you more flexibility with planting dates.

How long does yarrow take to grow in Valletta?

Yarrow typically takes 60-90 days from planting to harvest. In Valletta's Hot-summer Mediterranean climate with 365 frost-free days, you have plenty of time to grow Yarrow to maturity. Extremely drought-tolerant. Divide every 2-3 years. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Overwatering is the most common mistake. Let soil dry out between waterings and ensure drainage is excellent.

Can I grow yarrow indoors in Valletta?

Yarrow can potentially be grown indoors in Valletta 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 Nov, Dec, Jan, Feb outdoor planting window. Use containers with good drainage and low watering.

What month do I plant yarrow in Valletta?

Plant Yarrow in Valletta during November, December, January, February. These are the optimal months based on Valletta's USDA Zone 9 climate, 365 frost-free days, and temperature range of 10°C to 31°C.

Is yarrow hard to grow in Valletta?

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

What grows well with yarrow in Valletta?

In Valletta, you can grow many companion plants alongside Yarrow. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Valletta's Zone 9 climate.

Does yarrow need full sun in Valletta?

Yarrow requires full sun. In Valletta, 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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