Blechnum brasiliense
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Blechnum brasiliense

Brazilian tree fern

Tier 2 Difficulty: hard Water: high Light: full_shade
Water every
7 days
Temperature
20–37 °C
Soil pH
6–7
Hardiness
Zone 9–11
Click count
91
Observations
175

Description

Source: leafsnap

Blechnum brasiliense, commonly referred to as Brazilian Blechnum, is a species of fern that originates from South America. Belonging to the family Blechnaceae, this fern can reach heights of up to 1.5 meters. It is characterized by its distinct long, narrow fronds that boast a dark green hue. Brazilian Blechnum thrives in moist soil and partial shade, making it an ideal choice for both gardens and indoor spaces with indirect sunlight. Notably, this plant is also known for its air-purifying capabilities, effectively removing toxins such as formaldehyde from the environment. In traditional medicine, the leaves of Blechnum brasiliense have been utilized for their anti-inflammatory properties and are believed to promote wound healing. In summary, Blechnum brasiliense is an appealing addition to any garden or indoor area thanks to its unique appearance and air-purifying benefits.

Care Guide

💧 Water Every 7 days

Water your Blechnum ferns regularly throughout the growing season. Aim to keep the soil evenly moist, especially during the warmer months. Reduce watering frequency as the temperature drops. During the winter, the plants will likely only need watering once per week.

Suggested frequency: Every 7 days
☀️ Light Full shade

Neoblechnum brasiliense is native to habitats such as forest understories or rocky sites that provide natural shade. It prefers Full Shade but can tolerate Partial Sun.

Ideal: Full shade
🌡️ Temperature 20–37.8°C

Neoblechnum brasiliense comes from tropical areas, where the climate is generally warm and humid. Consequently, it is well suited to high temperatures and humidity. It does not tolerate sudden temperature shifts and prefers a consistent thermal environment, so avoiding temperature fluctuations indoors is important. It typically cannot withstand cold and needs higher temperatures to grow; if the surrounding temperature falls too low, the plant may stop growing or even die.

Ideal temperature: 20–37.8°C
💨 Humidity high (>60%)

This plant needs special care because it loves high humidity levels of 60-80% or more. The best way to achieve this is by placing a humidifier near the plant. Daily misting is also essential! Make sure the room has good ventilation.

Humidity: high (>60%)
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer
🪴 Pot & Repot
✂️ Pruning

Blechnum plants are pretty low-maintenance. The best time to prune these plants is during the spring. You can simply trim off any brown or browning fronds.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Fern
Life Cycle
Perennial
Genus
Blechnum
Family
Aspleniaceae
Hardiness Zone
9-11
Mature Height
61 cm
Mature Spread
61 cm
Leaf Color
Red, Green, Pink, Bronze
Leaf Type
Evergreen
Planting Time
Spring, Summer, Autumn
Native Area
Colombia, Belize, Mexico, Guatemala, Bolivia, Venezuela, Peru, Guyana, Brazil, Ecuador

Tags (5)

Common Names (1)

en Brazilian tree fern