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🥬 Vegetable medium

Growing Kohlrabi in Porto Alegre

🇧🇷 Zone 9 Planting Guide · Humid subtropical climate

USDA Zone 9 310 frost-free days 45-60 days to harvest

Quick Answer: Growing Kohlrabi in Porto Alegre

Yes, you can grow Kohlrabi in Porto Alegre, BR! Plant during Apr, May, Jun, Jul, Aug for best results. Porto Alegre is in USDA Zone 9 with a Humid subtropical climate, offering 310 frost-free days per year. The difficulty level is medium, and Kohlrabi takes 45-60 days to harvest. Kohlrabi needs full sun and regular watering.

Climate Match Analysis

Moderate Match Porto Alegre + Kohlrabi

Porto Alegre's climate requires careful timing. Summer highs (31°C) exceed Kohlrabi's maximum (24°C), so plant early or provide shade. Follow the recommended planting months for success.

Kohlrabi tolerates 0°C to 24°C
Optimal: 10°C - 20°C
Porto Alegre range 8°C to 31°C

Porto Alegre Climate Data

USDA Zone
9
Frost-Free
310days
Winter Low
8°C
Summer High
31°C
Rainfall
1320mm/yr
Climate
Cfa
Humid subtropical

Kohlrabi Planting Calendar for Porto Alegre

Green months show the best time to plant Kohlrabi in Porto Alegre

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

Kohlrabi Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

45-60

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Kohlrabi

Harvest when tennis-ball sized. Larger ones become woody. 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: Kohlrabi is frost tolerant — you can plant earlier in spring.

How to Grow Kohlrabi in Porto Alegre

Porto Alegre, BR is in USDA Hardiness Zone 9 with a Humid subtropical climate (Köppen Cfa). With winter lows of 8°C and summer highs of 31°C, the growing season spans approximately 310 frost-free days. Kohlrabi grows well with some gardening knowledge in this climate.

Kohlrabi thrives in temperatures between 10°C and 20°C, requiring full sun and regular watering. In Porto Alegre, the best months to plant Kohlrabi are April, May, June, July, August. Since Kohlrabi can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 45-60 days after planting.

Porto Alegre receives 1320mm of annual rainfall, which provides good natural moisture for Kohlrabi. Supplement with additional watering during dry spells.

Other Plants That Grow in Porto Alegre

More plants you can grow alongside Kohlrabi in Porto Alegre

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Frequently Asked Questions

Can I grow kohlrabi in Porto Alegre?

Yes! Kohlrabi can be successfully grown in Porto Alegre, BR. Porto Alegre is in USDA Hardiness Zone 9 with a Humid subtropical climate. The difficulty level for growing Kohlrabi here is rated "medium". The best months to plant are April, May, June, July, August.

When should I plant kohlrabi in Porto Alegre?

In Porto Alegre, the recommended planting months for Kohlrabi are April, May, June, July, August. Porto Alegre has 310 frost-free days per year, with winter lows of 8°C and summer highs of 31°C. Kohlrabi is frost tolerant, giving you more flexibility with planting dates.

How long does kohlrabi take to grow in Porto Alegre?

Kohlrabi typically takes 45-60 days from planting to harvest. In Porto Alegre's Humid subtropical climate with 310 frost-free days, you have plenty of time to grow Kohlrabi to maturity. Harvest when tennis-ball sized. Larger ones become woody. 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 kohlrabi indoors in Porto Alegre?

Kohlrabi can potentially be grown indoors in Porto Alegre 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 Apr, May, Jun, Jul, Aug outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant kohlrabi in Porto Alegre?

Plant Kohlrabi in Porto Alegre during April, May, June, July, August. These are the optimal months based on Porto Alegre's USDA Zone 9 climate, 310 frost-free days, and temperature range of 8°C to 31°C.

Is kohlrabi hard to grow in Porto Alegre?

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

What grows well with kohlrabi in Porto Alegre?

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

Does kohlrabi need full sun in Porto Alegre?

Kohlrabi requires full sun. In Porto Alegre, 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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