Cannonball tree (Couroupita guianensis)

Also known as: Cannonball Tree, Couroupita, Sal Tree

The Cannonball Tree (Couroupita guianensis) is a tropical species recognized for its sizeable, distinct, and aromatic flowers, as well as its spherical, cannonball-like fruit. When these fruits mature, they can pose a risk by dropping on individuals underneath the tree.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Cannonball tree

Lifespan

Perennial

Plant Type

Tree

Plant Height

15 m to 23 m

Spread

9 m

Leaf Color

Dark green

Flower Size

6 cm to 10 cm

Flower Color

Orange Purple Red

Images of Cannonball tree

Quickly Identify Cannonball tree

Couroupita guianensis can be identified by its huge spherical fruits that resemble cannonballs, which dangle from thick, woody stalks emerging directly from the trunk. The flowers are large, fragrant, and typically have a bright red to pink coloration with a white and yellow center.

Scientific Classification of Cannonball tree

Phylum

Vascular plants

Class

Dicotyledons

Order

Heathers and allies

Family

Brazil-nut

Genus

Cannonball tree

Species

Cannonball tree

Planting and Growing of Cannonball tree

Care Difficulty

Hard

Watering Schedule

Every 3 days

Sunlight Requirements

Full sun

Sunshine Duration

4-6 hours

Ideal Temperature

75-85℉

Soil Type

Potting Mix, Peat Mix

Soil pH

6.5-7.5

Fertilizer Type

Balanced

Pruning Season

Spring, Summer

Pruning Area

Branches, Leaves

Pruning Frequency

2 times a year

Repotting Season

Spring

Pot Type

Plastic, Ceramic

How to Water Cannonball tree?

Couroupita guianensis, also known as the cannonball tree, thrives with consistent moisture. Water deeply until the soil feels moist to the touch, roughly using around 1000 milliliters each time. Ensure the water penetrates the root zone but avoid waterlogging. This tropical tree prefers a balance between wet and well-drained, similar to its natural rainforest habitat.

What are the symptoms of an underwatered Cannonball tree? ›

What should I do if my Cannonball tree is not getting enough water? ›

What are the symptoms of an overwatered Cannonball tree? ›

How to save an overwatered Cannonball tree? ›

What Are the Sunlight Requirements for Cannonball tree?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 6 to 8 hours

Couroupita guianensis thrives in full sun to partial sun conditions. Ideal light promotes lush growth, abundant flowering, and enhances the plant's overall vitality.

What is the ideal lighting condition? ›

How can I achieve the ideal lighting for this plant? ›

What are the benefits of providing ideal lighting? ›

More About Sunlight Requirements Techniques→

What Is the Ideal Temperature Range for Cannonball tree?

Ideal Temperature: 75 ~ 85℉

Couroupita guianensis thrives best in a warm and humid environment. Ideally, the temperature should remain between 75°F and 85°F to support healthy growth. This range ensures that the plant receives the warmth necessary for efficient photosynthesis and helps maintain its lush foliage.

What Soil is Best for Cannonball tree?

Soil type: Loam, Sandy loam

Soil PH: 6.5 ~ 7.5

Couroupita guianensis thrives best in nutrient-rich soil, where the abundance of organic matter supports its robust growth. This type of soil ensures that the plant receives an ample supply of minerals and nutrients, promoting healthy leaves and vibrant flowers. Well-drained soil is crucial for the Couroupita guianensis as it prevents waterlogging around the roots. Ensuring the soil doesn't retain excess water helps avert root rot and fungal infections, keeping the tree healthy and thriving. This plant prefers soil that retains moderate moisture without becoming waterlogged. Such soil supports consistent hydration for the roots while allowing excess water to drain, providing a balanced moisture environment essential for its growth.

How to Fertilize Cannonball tree?

Fertilizer type: Balanced

For Couroupita guianensis, it's important to apply a balanced fertilizer that contains nitrogen, phosphorus, and potassium in equal proportions. Use a diluted liquid fertilizer at half strength to avoid root burn and ensure healthy growth.

How to Prune Cannonball tree?

Pruning Time: Spring, Summer

Begin by identifying any deadwood or overly dense branches within the tree canopy. This step is crucial as these areas can hinder air circulation and promote disease. Use sharp pruning shears to carefully remove these sections, ensuring to make clean cuts just above a healthy node. Shaping involves selectively trimming branches to establish a balanced and aesthetic form. Keep in mind that uneven canopies can lead to sunburnt sections and stresses. Trim back any excessively long branches to maintain a rounded and tidy canopy shape. More About Pruning Techniques→

How to Propagate Cannonball tree plant?

Propagate Time: Early spring, Spring, Early summer

The first step is to collect ripe seeds from a mature Couroupita guianensis tree. Ensure the seeds are dry and free from any pulp residue before planting.

Fill seed trays with the prepared soil mix. Ensure the soil is lightly moistened before placing the seeds at an appropriate depth to encourage germination.

Regularly water the seeds, ensuring the soil remains moist but not waterlogged. Place the trays in a warm, sunny spot to provide the seeds with ample light for germination.

More About Propagating Techniques→

How to Repot Cannonball tree plant?

Repotting frequency: Every 2-3 years

Repot Couroupita guianensis when you notice roots visibly coming out of the drainage holes or the growth has stagnated despite proper care. Spring and early summer are ideal seasons as the plant is entering its growing phase and can recover more quickly.

Opt for a pot that is 2-3 inches bigger in diameter than the current one. Ensure it has ample drainage holes to maintain optimal soil moisture levels. Using the right pot size prevents waterlogging and supports healthier root growth and stability for your plant.

Select a well-draining potting mix that has a balance of organic materials and aerating components like perlite or sand. This prevents water retention, allowing the roots to breathe and reducing the risk of root rot, which is key for sustained plant health.