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Growing Comfrey in Lisbon

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

USDA Zone 9 350 frost-free days 60-90 days to harvest

Quick Answer: Growing Comfrey in Lisbon

Yes, you can grow Comfrey in Lisbon, PT! Plant during Oct, Nov for best results. Lisbon is in USDA Zone 9 with a Hot-summer Mediterranean climate, offering 350 frost-free days per year. The difficulty level is medium, and Comfrey takes 60-90 days to harvest. Comfrey needs full sun to partial shade and regular watering.

Climate Match Analysis

Good Match Lisbon + Comfrey

Lisbon's temperatures (8°C to 28°C) are within the tolerable range for Comfrey (-15°C to 30°C), though not always in the optimal zone (12°C to 24°C). Plant during recommended months for best results.

Comfrey tolerates -15°C to 30°C
Optimal: 12°C - 24°C
Lisbon range 8°C to 28°C

Lisbon Climate Data

USDA Zone
9
Frost-Free
350days
Winter Low
8°C
Summer High
28°C
Rainfall
774mm/yr
Climate
Csa
Hot-summer Mediterranean

Comfrey Planting Calendar for Lisbon

Green months show the best time to plant Comfrey in Lisbon

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

Comfrey Growing Requirements

☀️

Sunlight

Full Sun to Partial Shade

2-4 hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

60-90

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Comfrey

Plant Bocking 14 variety (non-spreading). Chop and drop as mulch 4-5 times per season. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

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

How to Grow Comfrey in Lisbon

Lisbon, PT is in USDA Hardiness Zone 9 with a Hot-summer Mediterranean climate (Köppen Csa). With winter lows of 8°C and summer highs of 28°C, the growing season spans approximately 350 frost-free days. Comfrey grows well with some gardening knowledge in this climate.

Comfrey thrives in temperatures between 12°C and 24°C, requiring full sun to partial shade and regular watering. In Lisbon, the best months to plant Comfrey are October, November. Since Comfrey 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 774mm of annual rainfall, Lisbon provides moderate natural moisture. You'll likely need to supplement with regular watering, especially during the growing season.

Other Plants That Grow in Lisbon

More plants you can grow alongside Comfrey in Lisbon

Keep Exploring

Frequently Asked Questions

Can I grow comfrey in Lisbon?

Yes! Comfrey can be successfully grown in Lisbon, PT. Lisbon is in USDA Hardiness Zone 9 with a Hot-summer Mediterranean climate. The difficulty level for growing Comfrey here is rated "medium". The best months to plant are October, November.

When should I plant comfrey in Lisbon?

In Lisbon, the recommended planting months for Comfrey are October, November. Lisbon has 350 frost-free days per year, with winter lows of 8°C and summer highs of 28°C. Comfrey is frost tolerant, giving you more flexibility with planting dates.

How long does comfrey take to grow in Lisbon?

Comfrey typically takes 60-90 days from planting to harvest. In Lisbon's Hot-summer Mediterranean climate with 350 frost-free days, you have plenty of time to grow Comfrey to maturity. Plant Bocking 14 variety (non-spreading). Chop and drop as mulch 4-5 times per season. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Can I grow comfrey indoors in Lisbon?

Comfrey can potentially be grown indoors in Lisbon 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 outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant comfrey in Lisbon?

Plant Comfrey in Lisbon during October, November. These are the optimal months based on Lisbon's USDA Zone 9 climate, 350 frost-free days, and temperature range of 8°C to 28°C.

Is comfrey hard to grow in Lisbon?

Comfrey is rated "medium" to grow in Lisbon. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Comfrey in Lisbon is Good.

What grows well with comfrey in Lisbon?

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

Does comfrey need full sun in Lisbon?

Comfrey requires full sun to partial shade. Comfrey tolerates lower light. In Lisbon, 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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