Flamegold rain tree (Koelreuteria elegans)

Also known as: Flamegold, Koelreuteria henryi dümmer

The Flamegold Rain Tree (Koelreuteria elegans), originally from China, is a decorative tree that has become invasive in many regions globally. It poses significant environmental challenges in places like Hawaii and Brisbane, Australia.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting Toxicity

Attributes of Flamegold rain tree

Lifespan

Perennial

Plant Type

Tree

Plant Height

15 m to 17 m

Spread

9 m to 15 m

Leaf Color

Green, turning yellow in autumn

Flower Size

5 mm

Flower Color

Yellow

Images of Flamegold rain tree

Quickly Identify Flamegold rain tree

Koelreuteria elegans can be identified by its compound leaves, the bright yellow flowers that appear in large panicles, and the distinctive papery, lantern-shaped seed pods which turn from green to brown as they mature.

Scientific Classification of Flamegold rain tree

Phylum

Vascular plants

Class

Dicotyledons

Order

Sapindales

Family

Soapberry

Genus

Golden rain trees

Species

Flamegold rain tree

Planting and Growing of Flamegold rain tree

Care Difficulty

Easy

Watering Schedule

Every 2 days

Sunlight Requirements

Full sun

Sunshine Duration

4-6 hours

Ideal Temperature

60-75℉

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 Flamegold rain tree?

For Koelreuteria elegans, aim to provide about 1000 ml per watering session. Ensure the water reaches the root zone to maintain evenly moist soil, but avoid waterlogging. Water should seep into the soil gradually, which can help avoid root rot and promote healthy growth.

What are the symptoms of an underwatered Flamegold rain tree? ›

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

What are the symptoms of an overwatered Flamegold rain tree? ›

How to save an overwatered Flamegold rain tree? ›

What Are the Sunlight Requirements for Flamegold rain tree?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 6 to 8 hours daily

Koelreuteria elegans ideally requires full to partial sun with 6 to 8 hours of daily exposure. This light range facilitates robust growth and plentiful blooming, providing the energy needed for a healthy lifecycle.

What is the best location for Koelreuteria elegans? ›

How can I ensure my plant receives enough light indoors? ›

What benefits do ideal lighting conditions provide? ›

More About Sunlight Requirements Techniques→

What Is the Ideal Temperature Range for Flamegold rain tree?

Ideal Temperature: 60 ~ 75℉

The optimal temperature range for growing Koelreuteria elegans is between 60°F and 75°F. This range ensures healthy growth and allows the plant to thrive, promoting vibrant foliage and successful flowering. Maintaining temperatures within this range mimics the plant's natural habitat, thus reducing stress and enhancing its growth performance over time.

What Soil is Best for Flamegold rain tree?

Soil type: Loam, Sandy loam, Clay soil

Soil PH: 6.5 ~ 7.5

Koelreuteria elegans prefers well-draining soil to prevent waterlogging, which can lead to root rot. This type of soil allows excess water to drain away, keeping roots healthy and promoting optimal plant growth. A nutrient-rich soil is essential for providing Koelreuteria elegans with the necessary minerals and elements to thrive. It supports robust growth and vibrant foliage, as well as promoting flowering. The soil should retain enough moisture to keep the plant hydrated without causing oversaturation. This balance prevents dehydration while also reducing the risk of fungal diseases common in excessively moist environments.

How to Fertilize Flamegold rain tree?

Fertilizer type: Balanced

For Koelreuteria elegans, it's crucial to avoid over-fertilizing as it can lead to root damage. Use about 100 grams of balanced N-P-K (5-5-5) fertilizer per square meter for solid fertilizers. For liquid fertilizers, dilute according to the product's instructions, ensuring a gentle feed.

How to Prune Flamegold rain tree?

Pruning Time: Spring, Summer

Over-pruning can stress the tree, leading to poor flowering and growth. Always opt for minimal intervention, focusing on necessary structural corrections and dead wood removal to promote the tree's natural growth habit. Always use clean and sharp pruning tools to make precise cuts, reducing the risk of infection and encouraging quicker healing. Cleanliness ensures that no diseases are transferred between plants. More About Pruning Techniques→

How to Propagate Flamegold rain tree plant?

Propagate Time: Early spring,Spring

Soak the seeds in warm water for 24 hours to soften the seed coat and improve germination rates. This step is crucial for breaking seed dormancy.

Fill seed trays with a well-draining potting mix and sow the seeds about 1 inch apart. Cover lightly with soil and water thoroughly. Place in a warm, sunny location.

Select healthy, non-flowering shoots and cut sections about 6 inches long. Remove the lower leaves and dip the cut end in rooting hormone before planting in moist soil.

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How to Repot Flamegold rain tree plant?

Repotting frequency: Every two to three years

Repotting Koelreuteria elegans should be considered when you notice its growth slowing significantly, roots are visibly growing out of the drainage holes, or soil is no longer retaining moisture. Such indicators suggest the plant needs more space or replenished nutrients to thrive.

Select a pot that is just 1-2 inches larger in diameter than the current one. This ensures the roots have room to expand without being over-exposed to excess soil, which can retain too much moisture, leading to root rot. A pot with good drainage holes is essential to prevent water stagnation.

Opt for a well-draining potting mix enriched with organic matter, such as compost. This type of soil provides adequate aeration and nutrients vital for the plant's healthy growth and prevents water from pooling around the roots.

Toxicity of Flamegold rain tree

Is Flamegold rain tree toxic to humans?

The flamegold rain tree exhibits a mild degree of toxicity to humans, predominantly when its leaves and seeds are consumed. This toxic characteristic is attributed to the alkaloids present in these sections of the plant. Upon ingestion, individuals may encounter various symptoms, which can encompass gastrointestinal issues such as nausea, vomiting, and diarrhea. Moreover, the symptoms can also include neurological effects, such as headaches or dizziness. It is crucial for all individuals, particularly children who might be attracted to the plant's bright colors, to steer clear of unintended ingestion of these toxic components. The mild toxicity of the flamegold rain tree necessitates a degree of caution to avert any possible poisoning occurrences.

Is Flamegold rain tree toxic to cat?

The flamegold rain tree is recognized as having a mild level of toxicity to cats. If felines consume parts of this plant, particularly the leaves and seeds rich in alkaloids, they may experience various symptoms of physical distress. Cat owners who witness their pets nibbling on the flamegold rain tree or showing signs of illness must promptly seek veterinary assistance to secure the best possible outcome for their furry friends. To ensure the safety of cats, it is essential to restrict their access to flamegold rain tree and respond quickly if any exposure takes place.

Is Flamegold rain tree toxic to dog?

The flamegold rain tree is recognized for its mildly toxic effects on dogs. This plant can pose a poisoning risk if consumed by dogs, an occurrence that can happen frequently due to their inquisitive nature and habit of gnawing on various plants. The components of the flamegold rain tree that are considered dangerous include the leaves and seeds, which harbor toxic alkaloids. Ingesting these parts may lead to symptoms in dogs such as gastrointestinal distress, vomiting, or diarrhea. Hence, it is essential for dog owners to keep watch over their pets and restrict their access to the flamegold rain tree to prevent accidental consumption. Should a dog ingest any parts of this tree, seeking immediate veterinary care is vital to address any possible poisoning.

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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