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Growing Dahlia in Belem

🇧🇷 Zone 13 Planting Guide · Tropical rainforest climate

USDA Zone 13 365 frost-free days 90-120 days to harvest

Quick Answer: Growing Dahlia in Belem

Yes, you can grow Dahlia in Belem, BR! Plant during Nov, Dec, Jan, Feb for best results. Belem is in USDA Zone 13 with a Tropical rainforest climate, offering 365 frost-free days per year. The difficulty level is medium, and Dahlia takes 90-120 days to harvest. Dahlia needs full sun and regular watering.

Climate Match Analysis

Moderate Match Belem + Dahlia

Belem's climate requires careful timing. Summer highs (32°C) exceed Dahlia's maximum (30°C), so plant early or provide shade. Follow the recommended planting months for success.

Dahlia tolerates 5°C to 30°C
Optimal: 15°C - 25°C
Belem range 23°C to 32°C

Belem Climate Data

USDA Zone
13
Frost-Free
365days
Winter Low
23°C
Summer High
32°C
Rainfall
2834mm/yr
Climate
Af
Tropical rainforest

Dahlia Planting Calendar for Belem

Green months show the best time to plant Dahlia in Belem

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

Dahlia Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

90-120

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Dahlia

Dig tubers before frost. Stake tall varieties. 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: Dahlia is NOT frost tolerant — wait until after the last frost in Belem.

How to Grow Dahlia in Belem

Belem, BR is in USDA Hardiness Zone 13 with a Tropical rainforest climate (Köppen Af). With winter lows of 23°C and summer highs of 32°C, the growing season spans approximately 365 frost-free days. Dahlia grows well with some gardening knowledge in this climate.

Dahlia thrives in temperatures between 15°C and 25°C, requiring full sun and regular watering. In Belem, the best months to plant Dahlia are November, December, January, February. Dahlia is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 90-120 days after planting.

Belem receives 2834mm of annual rainfall, which provides good natural moisture for Dahlia. Supplement with additional watering during dry spells.

Other Plants That Grow in Belem

More plants you can grow alongside Dahlia in Belem

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Frequently Asked Questions

Can I grow dahlia in Belem?

Yes! Dahlia can be successfully grown in Belem, BR. Belem is in USDA Hardiness Zone 13 with a Tropical rainforest climate. The difficulty level for growing Dahlia here is rated "medium". The best months to plant are November, December, January, February.

When should I plant dahlia in Belem?

In Belem, the recommended planting months for Dahlia are November, December, January, February. Belem has 365 frost-free days per year, with winter lows of 23°C and summer highs of 32°C. Since Dahlia is not frost tolerant, make sure to plant after the last frost date.

How long does dahlia take to grow in Belem?

Dahlia typically takes 90-120 days from planting to harvest. In Belem's Tropical rainforest climate with 365 frost-free days, you have plenty of time to grow Dahlia to maturity. Dig tubers before frost. Stake tall varieties. 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 dahlia indoors in Belem?

Dahlia can potentially be grown indoors in Belem 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 Nov, Dec, Jan, Feb outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant dahlia in Belem?

Plant Dahlia in Belem during November, December, January, February. These are the optimal months based on Belem's USDA Zone 13 climate, 365 frost-free days, and temperature range of 23°C to 32°C.

Is dahlia hard to grow in Belem?

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

What grows well with dahlia in Belem?

In Belem, you can grow many companion plants alongside Dahlia. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Belem's Zone 13 climate.

Does dahlia need full sun in Belem?

Dahlia requires full sun. In Belem, 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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