Skip to content
🥬 Vegetable easy

Growing Tatsoi in Tucson

🇺🇸 Zone 7 Planting Guide · Hot desert climate

USDA Zone 7 310 frost-free days 21-45 days to harvest

Quick Answer: Growing Tatsoi in Tucson

Yes, you can grow Tatsoi 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 easy, and Tatsoi takes 21-45 days to harvest. Tatsoi needs full sun to partial shade and regular watering.

Climate Match Analysis

Moderate Match Tucson + Tatsoi

Tucson's climate requires careful timing. Summer highs (38°C) exceed Tatsoi's maximum (25°C), so plant early or provide shade. Follow the recommended planting months for success.

Tatsoi tolerates -10°C to 25°C
Optimal: 10°C - 20°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

Tatsoi Planting Calendar for Tucson

Green months show the best time to plant Tatsoi in Tucson

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

Tatsoi Growing Requirements

☀️

Sunlight

Full Sun to Partial Shade

2-4 hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

21-45

From planting to first harvest

📊

Difficulty

easy

Great for beginners

💡 Growing Tips for Tatsoi

Very cold-hardy -- grows under snow. Fast-growing. 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: Tatsoi is frost tolerant — you can plant earlier in spring.

How to Grow Tatsoi 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. Tatsoi is one of the easiest plants to grow in this climate.

Tatsoi thrives in temperatures between 10°C and 20°C, requiring full sun to partial shade and regular watering. In Tucson, the best months to plant Tatsoi are October, November. Since Tatsoi can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 21-45 days after planting.

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

Other Plants That Grow in Tucson

More plants you can grow alongside Tatsoi in Tucson

Keep Exploring

Frequently Asked Questions

Can I grow tatsoi in Tucson?

Yes! Tatsoi can be successfully grown in Tucson, US. Tucson is in USDA Hardiness Zone 7 with a Hot desert climate. The difficulty level for growing Tatsoi here is rated "easy". The best months to plant are October, November.

When should I plant tatsoi in Tucson?

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

How long does tatsoi take to grow in Tucson?

Tatsoi typically takes 21-45 days from planting to harvest. In Tucson's Hot desert climate with 310 frost-free days, you have plenty of time to grow Tatsoi to maturity. Very cold-hardy -- grows under snow. Fast-growing. 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 tatsoi indoors in Tucson?

Tatsoi 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 tatsoi in Tucson?

Plant Tatsoi 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 tatsoi hard to grow in Tucson?

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

What grows well with tatsoi in Tucson?

In Tucson, you can grow many companion plants alongside Tatsoi. 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 tatsoi need full sun in Tucson?

Tatsoi requires full sun to partial shade. Tatsoi 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

See an error? Report it