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🥬 Vegetable medium

Growing Yacon in Lisbon

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

USDA Zone 9 350 frost-free days 180-240 days to harvest

Quick Answer: Growing Yacon in Lisbon

Yes, you can grow Yacon in Lisbon, PT! Plant during Jan, Feb, Mar, Apr 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 Yacon takes 180-240 days to harvest. Yacon needs full sun and regular watering.

Climate Match Analysis

Good Match Lisbon + Yacon

Lisbon's temperatures (8°C to 28°C) are within the tolerable range for Yacon (5°C to 30°C), though not always in the optimal zone (15°C to 25°C). Plant during recommended months for best results.

Yacon tolerates 5°C to 30°C
Optimal: 15°C - 25°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

Yacon Planting Calendar for Lisbon

Green months show the best time to plant Yacon in Lisbon

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

Yacon Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

180-240

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Yacon

Plant crown pieces. Harvest after frost kills tops. Wait until soil warms to at least 15°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Frost tolerance: Yacon is NOT frost tolerant — wait until after the last frost in Lisbon.

How to Grow Yacon 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. Yacon grows well with some gardening knowledge in this climate.

Yacon thrives in temperatures between 15°C and 25°C, requiring full sun and regular watering. In Lisbon, the best months to plant Yacon are January, February, March, April. Yacon is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 180-240 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 Yacon in Lisbon

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Frequently Asked Questions

Can I grow yacon in Lisbon?

Yes! Yacon 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 Yacon here is rated "medium". The best months to plant are January, February, March, April.

When should I plant yacon in Lisbon?

In Lisbon, the recommended planting months for Yacon are January, February, March, April. Lisbon has 350 frost-free days per year, with winter lows of 8°C and summer highs of 28°C. Since Yacon is not frost tolerant, make sure to plant after the last frost date.

How long does yacon take to grow in Lisbon?

Yacon typically takes 180-240 days from planting to harvest. In Lisbon's Hot-summer Mediterranean climate with 350 frost-free days, you have plenty of time to grow Yacon to maturity. Plant crown pieces. Harvest after frost kills tops. Wait until soil warms to at least 15°C before transplanting outdoors — cold soil stunts growth and can invite root rot. 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 yacon indoors in Lisbon?

Yacon can potentially be grown indoors in Lisbon 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 Jan, Feb, Mar, Apr outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant yacon in Lisbon?

Plant Yacon in Lisbon during January, February, March, April. 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 yacon hard to grow in Lisbon?

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

What grows well with yacon in Lisbon?

In Lisbon, you can grow many companion plants alongside Yacon. 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 yacon need full sun in Lisbon?

Yacon requires full sun. In Lisbon, 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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