Handroanthus chrysanthus — an easy houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Handroanthus chrysanthus

Handroanthus Chrysanthus

Updated · 116 observations
A NOTE OF INTEREST

Handroanthus chrysanthus, commonly known as the Yellow Trumpet Tree, is a species of flowering tree native to Central and South America. Belonging to the Bignoniaceae family, this tree can grow up to 30 meters tall. It features a straight trunk with grayish-brown bark that is smooth in its youth but becomes rough as the tree ages. The leaves are compound and can reach up to 30 cm in length, with each leaflet being lance-shaped.

The Yellow Trumpet Tree produces large clusters of bright yellow, trumpet-shaped flowers that bloom in late winter or early spring, prior to the emergence of the leaves. Each flower is approximately 5 cm long and has five petals that flare outward from the center.

This tree prefers full sun exposure but can also tolerate partial shade in well-drained soil. While it is drought-tolerant once established, it requires regular watering during its early growth stages.

Handroanthus chrysanthus, commonly known as the Araguaney or ipê-amarelo, is Venezuela's national tree. The striking yellow color of its flowers, which bloom from winter to spring, is said to closely resemble the shade of yellow found on the Venezuelan flag. FUN FACT · FROM THE LIBRARY

Handroanthus chrysanthus is valued in traditional medicine for its anti-inflammatory properties and for treating respiratory issues such as asthma and bronchitis.

In summary, Handroanthus chrysanthus is not only an attractive ornamental plant that adds vibrant color to any landscape or garden but also offers medicinal benefits.

THE NAME

Golden Trumpet-Tree: The name "golden trumpet-tree" for Handroanthus chrysanthus comes from the appearance of its blossoms. These trumpet-shaped flowers are a striking gold-yellow, creating a spectacular display when they bloom in late winter or early spring.

A note from PlantMom

The golden trumpet-tree has strong disease resistance and is generally not susceptible to illnesses. In terms of care, this plant is fairly low-maintenance. When planted outdoors it needs minimal watering, and larger specimens usually do not require pruning. Smaller plants, however, should be pruned after they have finished blooming. The golden trumpet-tree is suitable for anyone with outdoor space, such as a garden or a deck, and does not require extensive experience in plant care.

— PlantMom
CARE GUIDE

How to keep Handroanthus Chrysanthus.

Light

The golden trumpet-tree does best when it gets plenty of daylight. Native to bright habitats, it shows its strongest growth under those light conditions. It is not tolerant of shade. Its origin in well-lit places explains this preference. Nonetheless, either too much or too little light can interfere with its growth and overall health.

Water

The golden trumpet tree, native to arid regions, thrives with minimal moisture and has high drought tolerance. It only needs watering every 2-3 weeks. In warmer climates, as an outdoor plant, it benefits from rain during the dry season, which enhances its flowering and vibrancy.

Temperature

The golden trumpet-tree comes from warm-climate habitats and favors temperatures between 68 and 100 °F (20 to 38 ℃). Seasonal measures may be needed to maintain these temperatures, particularly during cooler months.

Fertilizer

The best time to fertilize a Golden trumpet-tree is in early spring as it breaks dormancy. This encourages overall growth and flower formation. Fertilizing improves the foliage, stems, and branches, and supports flowers that are large, vivid, and long-lasting. It assists nutrient movement from the roots to the flowers and enhances the plant’s health and disease resistance.

Pruning

The golden trumpet tree showcases vibrant yellow flowers and flourishes when pruned in early spring. To promote healthy growth, it is important to remove any dead or diseased branches, which will improve the tree's structure and airflow. Additionally, always clean your tools to prevent the spread of disease. Pruning properly not only encourages robust blooms but also maintains the tree's visual appeal.

CHARACTERISTICS

Botanical profile.

Plant Type
Tree
Life Cycle
Perennial
Genus
Handroanthus
Family
Bignoniaceae
Hardiness Zone
10-12
Mature Height
6.1 m to 11.89 m
Mature Spread
7.62 m to 10.36 m
Leaf Color
Green, Blue
Leaf Type
Deciduous
Flower Color
Yellow
Flower Size
2.54 cm to 5.08 cm
Bloom Time
Mid spring, Late spring, Early summer
Planting Time
Spring, Autumn
Harvest Time
Mid summer
ALSO KNOWN AS

Other names.

en Roble amarillo en Yellow trumpet tree en Yellow poui en Trumpet Trees en Golden tabebuia en Gold tree
FREQUENTLY ASKED

Reader questions.

What is the best way to water my Golden trumpet-tree?

To promote excellent root development, consider placing a garden hose at the base of your plants. Avoid spraying the leaves directly, especially if they are outdoors and exposed to direct sunlight, as they may require more water. Using bubblers or soaker hoses can help moisten the roots effectively. When adding or removing plants, use soaker hoses that cover the whole garden or bed to ensure deep root growth. Be sure to drain excess water and allow the soil to dry before watering again. Water at ground level to prevent disease. On a sunny day, it may be beneficial to spray the entire bush with water. Whether your plants are in pots or planted in the ground, remember that Golden trumpet-tree prefers deep watering rather than light sprinkling.

Why should I put fertilizer on my Golden trumpet-tree?

Fertilizing a Golden trumpet-tree is crucial for its overall health and well-being. When provided with the right combination of energy and nutrients, the tree develops lush foliage, strong stems, and branches. However, it is the flowers of the Golden trumpet-tree that are highly valued by gardeners. Luckily, fertilization not only benefits the overall plant health but also enhances the size, vibrancy, and longevity of the flowers. The reason behind this is that the appropriate fertilizer helps the tree efficiently transport fuel from its roots to its flowers through its stems. Moreover, proper fertilization supports the tree's overall health, increasing its ability to combat diseases.

What are the sunlight requirements for the Golden trumpet-tree?

The Golden trumpet-tree requires more than 6 hours of sunlight to thrive, emphasizing the need for full sun exposure. It's vital to observe your garden's sunlight patterns to find spots that provide an ideal balance of light and shade, as proper placement ensures the plant's growth and health. Originating from sun-rich environments, the Golden trumpet-tree performs best under ample daylight and has a low tolerance for shade. Insufficient or excessive sunlight can negatively affect its growth.

What is the ideal temperature range for the Golden trumpet-tree?

The ideal temperature range for the Golden trumpet-tree falls between 68 and 100 °F (20 to 38 °C). This plant is native to warm climates and prefers these temperatures to thrive. During cooler months, it is essential to make seasonal adjustments to maintain these temperature conditions, as the Golden trumpet-tree is extremely heat-loving. Cold temperatures can adversely affect the plant, and it is recommended to bring outdoor plants indoors during autumn, placing them near a bright window but away from heaters to avoid harm. Keeping the temperature above 20°C during winter contributes positively to the plant's growth, while temperatures nearing 5°C can be detrimental.

What should I do if I give the Golden trumpet-tree too much or too little water?

An overwatered Golden trumpet-tree can exhibit several signs of distress. The leaves may turn yellow, drop off, and become wilted. The plant may also appear dull and unhealthy, with mushy stems. When these signs become apparent, it is best to adjust your watering schedule as needed. On the other hand, wilting can also indicate under watering. In this case, the leaves may become crispy and dry, while overwatered leaves will be soft and wilted. If the soil is dry and simply watering is not enough, a thorough watering is necessary. However, even with enough water, the Golden trumpet-tree may still have dry and yellow leaves due to damage to the root system. Once the plant returns to normal, the yellowing of leaves will cease. When keeping the Golden trumpet-tree indoors, always check the moisture levels of the pot. Avoid overwatering and be on the lookout for black spots. If such spots are present, allow the soil to dry in the pot for a few days by refraining from watering. Overwatering can lead to root rot, so if discolored and slimy roots are observed, consider transferring the plant to a different pot. It is important to prevent root rot by avoiding excessively soggy soil. When planting the Golden trumpet-tree outdoors, it is recommended to dig a little deeper. If the soil feels excessively dry when checked with your fingers, this could indicate under watering. Adequate watering is essential in aiding the plant's recovery.

When should I fertilize my Golden trumpet-tree?

To properly fertilize a Golden trumpet-tree, the best time is in early spring when the plant is coming out of its dormant phase and is about to bloom. By fertilizing during this time, your tree will have enough energy to support its growth and flower development. However, it is also beneficial to give it another feeding in the fall, although a smaller amount will suffice. Some gardeners may choose to fertilize during planting, but it is not always required.

How do you provide adequate light for indoor Golden trumpet-trees?

Indoor Golden trumpet-trees need sufficient lighting to grow optimally, especially when natural sunlight is lacking, such as in winter or less sunny spaces. Artificial lighting becomes essential in such scenarios, offering a solution for healthier, faster growth. LED lights are recommended for their ability to be customized to the specific light wavelengths needed by the plant. For full sun plants, 30-50W/sq ft of artificial light is needed; partial sun plants require 20-30W/sq ft, while full shade plants need 10-20W/sq ft. The light source should be placed 12-36 inches above the plant, mimicking natural sunlight as closely as possible, with most plants benefiting from 8-12 hours of artificial light per day.

How should you care for a Golden trumpet-tree exposed to low temperatures?

If a Golden trumpet-tree is exposed to low temperatures, it's important to act quickly to mitigate any potential damage. This plant thrives best at temperatures above 20°C and should be kept above 5°C during winter. Exposure to temperatures below 1°C may cause the leaves to lighten in color, and after frost damage, you might see the leaves browning or blackening, with signs of wilting and drooping. The recommended care solution is to trim off the frost-damaged parts and move the plant to a warm indoor environment immediately for protection. Placing the plant near a south-facing window can ensure it receives ample sunlight. It's also crucial to avoid placing it near heaters or air conditioning vents, as these can cause excessive dryness in the air.

How often should I give water to my Golden trumpet-tree?

The Golden trumpet-tree prefers deep and less frequent watering, especially when planted in pots. To keep the soil from drying out quickly, soak the plant with a gallon of water each time you water it. If you live in a cold region, water the tree every 3 to 5 days, preferably in the morning when the soil is dry. Check the soil by feeling the top 2-3 inches; if it's dry, it's time to water. During hot weather, check the moisture daily to prevent the soil from drying out. If you have a garden, irrigation is necessary, especially in hot climates where watering once a week is sufficient. Be mindful of rainfall, as excessive water can lead to root rot. Mulching about 3 to 4 inches deep can help conserve water when the tree is outdoors. Sandy soil requires more frequent watering, while clay soil can go 2-3 days without water to avoid root rot. Keep track of watering dates on a calendar and pay attention to drooping leaves, which might indicate a need for water sooner than expected.

When is it not a good idea to use fertilizer on my Golden trumpet-tree?

You do not need to fertilize your Golden trumpet-tree during the winter because it is in a dormant phase and does not require energy from the soil. Fertilizing during winter can lead to negative effects from overfertilization. The best times to feed the Golden trumpet-tree are in early spring and fall. During most of the spring and summer, the plant does not need fertilizer. It is also advisable to refrain from feeding if the plant is experiencing exceptionally hot or dry conditions.

What are the symptoms of insufficient light in Golden trumpet-trees?

Golden trumpet-trees exhibit various symptoms when exposed to insufficient light, especially indoors during winter. These symptoms include smaller new leaves, leggy or sparse growth, premature leaf drop, halted new growth, paler new leaves, chlorosis (yellowing leaves), sunscald, leaf curling, wilting, and leaf scorching. Each symptom indicates the plant's struggle with light deficiency and its impacts on growth, leaf size, and overall health.

What steps should be taken if a Golden trumpet-tree is subjected to high temperatures?

During summer, it's important to monitor the temperature around a Golden trumpet-tree, ensuring it stays below 38°C. Exposure to temperatures above 43°C can lead to lighter leaf color and increase the risk of sunburn for the plant. To care for a Golden trumpet-tree under such conditions, start by trimming away any sunburned or dried-up parts. Next, move the plant to a location where it can receive shade during the midday and afternoon sun, which will help protect it from further damage. Watering the plant in the morning and evening is also advisable to keep the soil moist and help the plant cope with the heat.

PLATES
Handroanthus chrysanthus leaf
PLATE 01 · leaf
Handroanthus chrysanthus flower
PLATE 02 · flower
Handroanthus chrysanthus flower
PLATE 03 · flower
Handroanthus chrysanthus bark
PLATE 04 · bark
ALSO IN THE LIBRARY

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