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Growing Comfrey in Tucson

🇺🇸 Zone 7 Planting Guide · Hot desert climate

USDA Zone 7 310 frost-free days 60-90 days to harvest

Quick Answer: Growing Comfrey in Tucson

Yes, you can grow Comfrey in Tucson, US! Plant during Oct, Nov for best results. Tucson is in USDA Zone 7 with a Hot desert climate, offering 310 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

Moderate Match Tucson + Comfrey

Tucson's climate requires careful timing. Summer highs (38°C) exceed Comfrey's maximum (30°C), so plant early or provide shade. Follow the recommended planting months for success.

Comfrey tolerates -15°C to 30°C
Optimal: 12°C - 24°C
Tucson range 4°C to 38°C

Tucson Climate Data

USDA Zone
7
Frost-Free
310days
Winter Low
4°C
Summer High
38°C
Rainfall
294mm/yr
Climate
BWh
Hot desert

Comfrey Planting Calendar for Tucson

Green months show the best time to plant Comfrey in Tucson

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 Tucson

Tucson, US is in USDA Hardiness Zone 7 with a Hot desert climate (Köppen BWh). With winter lows of 4°C and summer highs of 38°C, the growing season spans approximately 310 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 Tucson, 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.

Tucson receives only 294mm of annual rainfall, so consistent irrigation will be essential for growing Comfrey successfully.

Other Plants That Grow in Tucson

More plants you can grow alongside Comfrey in Tucson

Keep Exploring

Frequently Asked Questions

Can I grow comfrey in Tucson?

Yes! Comfrey can be successfully grown in Tucson, US. Tucson is in USDA Hardiness Zone 7 with a Hot desert 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 Tucson?

In Tucson, the recommended planting months for Comfrey are October, November. Tucson has 310 frost-free days per year, with winter lows of 4°C and summer highs of 38°C. Comfrey is frost tolerant, giving you more flexibility with planting dates.

How long does comfrey take to grow in Tucson?

Comfrey typically takes 60-90 days from planting to harvest. In Tucson's Hot desert climate with 310 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 Tucson?

Comfrey can potentially be grown indoors in Tucson 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 Tucson?

Plant Comfrey in Tucson during October, November. These are the optimal months based on Tucson's USDA Zone 7 climate, 310 frost-free days, and temperature range of 4°C to 38°C.

Is comfrey hard to grow in Tucson?

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

What grows well with comfrey in Tucson?

In Tucson, 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 Tucson's Zone 7 climate.

Does comfrey need full sun in Tucson?

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