River red gum (Eucalyptus camaldulensis)

Also known as: River Red Gum, Murray Red Gum

The River Red Gum (Eucalyptus camaldulensis) is a well-known and widely distributed tree in Australia. Native and unique to the continent, this species offers essential shade in the hot climate and is often found near waterways. It is named for its distinctive red wood, which is resistant to rot and commonly used as firewood.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting Toxicity

Attributes of River red gum

Lifespan

Perennial

Plant Type

Tree

Plant Height

20 m to 30 m

Spread

15 m

Leaf Color

Green Gray

Flower Size

2 mm to 1 cm

Flower Color

White Yellow Cream

Images of River red gum

Quickly Identify River red gum

Look for tall trees with smooth white to gray bark that peels off in strips, creating a patchwork appearance. The leaves are long, narrow, and typically greenish-gray. Flowers are white or cream-colored.

Scientific Classification of River red gum

Phylum

Vascular plants

Class

Dicotyledons

Order

Myrtle order

Family

Myrtle

Genus

Eucalypts

Species

River red gum

Planting and Growing of River red gum

Care Difficulty

Easy

Watering Schedule

Every 2 days

Sunlight Requirements

Full sun

Sunshine Duration

6-10 hours

Ideal Temperature

68-86℉

Soil Type

Potting Mix, Peat Mix

Soil pH

6-8

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 River red gum?

Eucalyptus camaldulensis, commonly known as the River Red Gum, requires a substantial amount of water when young, around 1000 ml per watering. Ensure that the soil is moist but not waterlogged, as this tree grows best with good drainage. It thrives in regions with periodic flooding or alongside rivers, reflecting its natural habitat.

What are the symptoms of an underwatered River red gum? ›

What should I do if my River red gum is not getting enough water? ›

What are the symptoms of an overwatered River red gum? ›

How to save an overwatered River red gum? ›

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What Are the Sunlight Requirements for River red gum?

Sunlight Requirements: Full sun

Duration of light: 6 to 12 hours

Full-day sunlight is ideal, providing numerous benefits including enhanced growth rates, increased leaf size, and higher oil production. Eucalyptus camaldulensis is suited for regions with abundant sunlight.

Optimal Sunlight Exposure ›

Solution for Ideal Lighting ›

Benefits of Ideal Light ›

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What Is the Ideal Temperature Range for River red gum?

Ideal Temperature: 68 ~ 86℉

The ideal temperature range for Eucalyptus camaldulensis is between 68°F and 86°F. This range ensures optimal growth conditions, supporting photosynthesis and overall plant vitality. Maintaining temperatures within this range is key for the healthy development and resilience of the plant.

What Soil is Best for River red gum?

Soil type: Loam, Sandy loam, Clay soil

Soil PH: 6 ~ 8

Eucalyptus camaldulensis thrives in well-drained soils that can retain moderate moisture levels. A soil that holds moisture supports the plant during dry spells while not becoming waterlogged, preventing root rot. This plant benefits from nutritious soils with ample organic matter, boosting growth and making it resilient. Nutrients like nitrogen, phosphorus, and potassium are essential for its development and vigor. Loamy and sandy loam soils allow adequate airflow to roots, enhancing oxygen uptake. Proper aeration prevents diseases and aids crucial biochemical processes necessary for the eucalyptus' health. More About Soil→

How to Fertilize River red gum?

Fertilizer type: Balanced

For Eucalyptus camaldulensis, a balanced fertilizer with equal N-P-K ratio is recommended. Young trees may require 1 kg per year, while mature trees can benefit from up to 5 kg annually depending on soil conditions. More About Fertilizing Techniques→

How to Prune River red gum?

Pruning Time: Spring, Summer, Autumn, Winter

Always ensure your pruning tools are clean and sharp before beginning. This prevents the spread of infections and ensures clean cuts, which heal quicker and more effectively. When pruning Eucalyptus camaldulensis, it's crucial to wear gloves and protective eyewear. The tree's leaves and sap can sometimes cause skin irritation, so protection is necessary. More About Pruning Techniques→

How to Propagate River red gum plant?

Propagate Time: Spring, Summer

Gather seeds from mature Eucalyptus camaldulensis by collecting seed pods after they naturally fall. Ensure they're fully dried before using.

Select healthy branches and cut 10-15 cm sections. Remove the lower leaves and dip the cut end in rooting hormone to encourage growth.

Plant the seeds in a well-draining mixture, covering lightly with soil. For cuttings, insert them into the soil up to the first leaf node.

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How to Repot River red gum plant?

Repotting frequency: Every 2-3 years

Look for signs such as roots growing out of the drainage holes or the plant becoming top-heavy and unstable. Spring is the optimal period due to its active growth phase, allowing it to adapt swiftly to its new environment.

Opt for a pot that's an inch or two larger in diameter than the current one. Ensure it has ample drainage holes to prevent waterlogging. This enhances root health, allowing fresh growth as the roots have room to spread.

Select a well-draining, loamy soil mix enriched with organic material. This ensures adequate aeration and nutrient supply to the roots, offering the perfect balance for active growth and water retention.

Toxicity of River red gum

Is River red gum toxic to humans?

The river red gum exhibits a moderate degree of toxicity in humans, mainly due to the unintended consumption of its essential oil. This essential oil, the harmful component of the plant, can lead to various symptoms upon ingestion. Those who encounter the toxic essential oil may suffer from gastrointestinal issues, including nausea, vomiting, and diarrhea. Furthermore, neurological effects such as confusion, dizziness, and weakness might arise. It is crucial for people to understand the potential dangers linked to the essential oil of river red gum and to steer clear of accidental ingestion in order to avert these harmful health consequences.

Is River red gum toxic to cat?

The river red gum possesses a moderate level of toxicity for cats. Felines may become ill from inadvertently consuming parts of the plant that harbor essential oils. Coming into contact with this toxic element may cause physical distress, indicating that the cat is not feeling well. Pet owners must be attentive to their cats' engagement with river red gum and should promptly seek veterinary assistance if poisoning is feared to safeguard their pet's health and well-being.

Is River red gum toxic to dog?

The river red gum carries a moderate level of toxicity risk for dogs. These canines might inadvertently chew on various parts of the plant, which may result in poisoning. The essential oil present in river red gum is especially harmful when ingested by dogs. Symptoms indicative of poisoning can manifest as vomiting, diarrhea, weakness, and in more severe instances, seizures or liver failure. It is essential for dog owners to safeguard their pets from areas where river red gum flourishes and to remain alert regarding their dog's interactions with this plant. If there are suspicions that a dog has ingested river red gum, prompt veterinary attention is crucial to maximize the chances of recovery for the affected pet.

WARNING

The judgment on toxicity and danger is for reference only. We DO NOT GUARANTEE any accuracy of such judgment. Therefore, you SHALL NOT rely on such judgment. It is IMPORTANT TO SEEK PROFESSIONAL ADVICE in advance when necessary.

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