Allamanda Cathartica L.
Commonly known as
Golden Trumpet
Allamanda cathartica is a tropical vine from Brazil with large golden-yellow trumpet flowers and glossy leaves.

Allamanda Cathartica L.
Commonly known as
Golden Trumpet
Allamanda cathartica is a tropical vine from Brazil with large golden-yellow trumpet flowers and glossy leaves.

Allamanda Cathartica L.
Commonly known as
Golden Trumpet
Allamanda cathartica is a tropical vine from Brazil with large golden-yellow trumpet flowers and glossy leaves.

Allamanda Cathartica L.
Commonly known as
Golden Trumpet
Allamanda cathartica is a tropical vine from Brazil with large golden-yellow trumpet flowers and glossy leaves.

Allamanda Cathartica L.
Commonly known as
Golden Trumpet
Allamanda cathartica is a tropical vine from Brazil with large golden-yellow trumpet flowers and glossy leaves.

Allamanda Cathartica L.
Commonly known as
Golden Trumpet
Allamanda cathartica is a tropical vine from Brazil with large golden-yellow trumpet flowers and glossy leaves.

Allamanda Cathartica L.
Commonly known as
Golden Trumpet
Allamanda cathartica is a tropical vine from Brazil with large golden-yellow trumpet flowers and glossy leaves.

Identification & Classification
Color & Surface
Vibrant "highlighter yellow" scales. They turn greenish when wet because the yellow skin becomes see-through, revealing the green algae inside.
Shape & Form
A scaly "crust" made of tiny, flat tiles. It grows in irregular patches that look like cracked paint or a tiled floor on the ground.
Fruiting
Small, sunken black or reddish dots in the center of the scales. These act like "launch pads" to release the lichen's spores.
Growth Habitat & Substrate
Strictly soil-dwelling in dry areas. It grows on dirt or among mosses. Pro tip: if it's on a bare rock, it's a different species.
Taxonomy Classification
Kingdom
Plantae
Division
Magnoliophyta
Class
Magnoliopsida
Order
Gentianales
Family
Apocynaceae Juss.
Genus
Allamanda L.
Species
Allamanda Cathartica L.
Identification & Classification
Color & Surface
Vibrant "highlighter yellow" scales. They turn greenish when wet because the yellow skin becomes see-through, revealing the green algae inside.
Shape & Form
A scaly "crust" made of tiny, flat tiles. It grows in irregular patches that look like cracked paint or a tiled floor on the ground.
Fruiting
Small, sunken black or reddish dots in the center of the scales. These act like "launch pads" to release the lichen's spores.
Growth Habitat & Substrate
Strictly soil-dwelling in dry areas. It grows on dirt or among mosses. Pro tip: if it's on a bare rock, it's a different species.
Taxonomy Classification
Kingdom
Plantae
Division
Magnoliophyta
Class
Magnoliopsida
Order
Gentianales
Family
Apocynaceae Juss.
Genus
Allamanda L.
Species
Allamanda Cathartica L.
Identification & Classification
Color & Surface
Vibrant "highlighter yellow" scales. They turn greenish when wet because the yellow skin becomes see-through, revealing the green algae inside.
Shape & Form
A scaly "crust" made of tiny, flat tiles. It grows in irregular patches that look like cracked paint or a tiled floor on the ground.
Fruiting
Small, sunken black or reddish dots in the center of the scales. These act like "launch pads" to release the lichen's spores.
Growth Habitat & Substrate
Strictly soil-dwelling in dry areas. It grows on dirt or among mosses. Pro tip: if it's on a bare rock, it's a different species.
Taxonomy Classification
Kingdom
Plantae
Division
Magnoliophyta
Class
Magnoliopsida
Order
Gentianales
Family
Apocynaceae Juss.
Genus
Allamanda L.
Species
Allamanda Cathartica L.
Identification & Classification
Color & Surface
Vibrant "highlighter yellow" scales. They turn greenish when wet because the yellow skin becomes see-through, revealing the green algae inside.
Shape & Form
A scaly "crust" made of tiny, flat tiles. It grows in irregular patches that look like cracked paint or a tiled floor on the ground.
Fruiting
Small, sunken black or reddish dots in the center of the scales. These act like "launch pads" to release the lichen's spores.
Growth Habitat & Substrate
Strictly soil-dwelling in dry areas. It grows on dirt or among mosses. Pro tip: if it's on a bare rock, it's a different species.
Taxonomy Classification
Kingdom
Plantae
Division
Magnoliophyta
Class
Magnoliopsida
Order
Gentianales
Family
Apocynaceae Juss.
Genus
Allamanda L.
Species
Allamanda Cathartica L.
Identification & Classification
Color & Surface
Vibrant "highlighter yellow" scales. They turn greenish when wet because the yellow skin becomes see-through, revealing the green algae inside.
Shape & Form
A scaly "crust" made of tiny, flat tiles. It grows in irregular patches that look like cracked paint or a tiled floor on the ground.
Fruiting
Small, sunken black or reddish dots in the center of the scales. These act like "launch pads" to release the lichen's spores.
Growth Habitat & Substrate
Strictly soil-dwelling in dry areas. It grows on dirt or among mosses. Pro tip: if it's on a bare rock, it's a different species.
Taxonomy Classification
Kingdom
Plantae
Division
Magnoliophyta
Class
Magnoliopsida
Order
Gentianales
Family
Apocynaceae Juss.
Genus
Allamanda L.
Species
Allamanda Cathartica L.
Identification & Classification
Color & Surface
Vibrant "highlighter yellow" scales. They turn greenish when wet because the yellow skin becomes see-through, revealing the green algae inside.
Shape & Form
A scaly "crust" made of tiny, flat tiles. It grows in irregular patches that look like cracked paint or a tiled floor on the ground.
Fruiting
Small, sunken black or reddish dots in the center of the scales. These act like "launch pads" to release the lichen's spores.
Growth Habitat & Substrate
Strictly soil-dwelling in dry areas. It grows on dirt or among mosses. Pro tip: if it's on a bare rock, it's a different species.
Taxonomy Classification
Kingdom
Plantae
Division
Magnoliophyta
Class
Magnoliopsida
Order
Gentianales
Family
Apocynaceae Juss.
Genus
Allamanda L.
Species
Allamanda Cathartica L.
Care Requirements
Sunlight
Requires full sun for best flowering, needing at least 6–8 hours of direct sunlight daily. Insufficient light results in leggy growth and reduced blooms.
Temperature
Thrives in warm, tropical temperatures between 20–30°C. Frost-sensitive; protect from temperatures below 10°C. Ideal for USDA zones 10–11.
Nutrient
Heavy feeder; benefits from regular applications of balanced fertilizer during the growing season. Supplement with phosphorus to promote abundant flowering.
Soil
Grows best in rich, fertile, well-drained soil amended with organic matter. Tolerates slightly acidic to neutral pH. Avoid heavy clay or poorly drained substrates.
Maintenance
Moderate maintenance. Prune regularly to control vigorous growth and encourage bushier form. Provide sturdy support for climbing. Remove spent flowers to prolong blooming.
Water
Prefers regular, consistent watering to keep soil evenly moist. Reduce watering in winter. Avoid waterlogging, which can cause root rot.
Care Requirements
Sunlight
Requires full sun for best flowering, needing at least 6–8 hours of direct sunlight daily. Insufficient light results in leggy growth and reduced blooms.
Temperature
Thrives in warm, tropical temperatures between 20–30°C. Frost-sensitive; protect from temperatures below 10°C. Ideal for USDA zones 10–11.
Nutrient
Heavy feeder; benefits from regular applications of balanced fertilizer during the growing season. Supplement with phosphorus to promote abundant flowering.
Soil
Grows best in rich, fertile, well-drained soil amended with organic matter. Tolerates slightly acidic to neutral pH. Avoid heavy clay or poorly drained substrates.
Maintenance
Moderate maintenance. Prune regularly to control vigorous growth and encourage bushier form. Provide sturdy support for climbing. Remove spent flowers to prolong blooming.
Water
Prefers regular, consistent watering to keep soil evenly moist. Reduce watering in winter. Avoid waterlogging, which can cause root rot.
Care Requirements
Sunlight
Requires full sun for best flowering, needing at least 6–8 hours of direct sunlight daily. Insufficient light results in leggy growth and reduced blooms.
Temperature
Thrives in warm, tropical temperatures between 20–30°C. Frost-sensitive; protect from temperatures below 10°C. Ideal for USDA zones 10–11.
Nutrient
Heavy feeder; benefits from regular applications of balanced fertilizer during the growing season. Supplement with phosphorus to promote abundant flowering.
Soil
Grows best in rich, fertile, well-drained soil amended with organic matter. Tolerates slightly acidic to neutral pH. Avoid heavy clay or poorly drained substrates.
Maintenance
Moderate maintenance. Prune regularly to control vigorous growth and encourage bushier form. Provide sturdy support for climbing. Remove spent flowers to prolong blooming.
Water
Prefers regular, consistent watering to keep soil evenly moist. Reduce watering in winter. Avoid waterlogging, which can cause root rot.
Care Requirements
Sunlight
Requires full sun for best flowering, needing at least 6–8 hours of direct sunlight daily. Insufficient light results in leggy growth and reduced blooms.
Temperature
Thrives in warm, tropical temperatures between 20–30°C. Frost-sensitive; protect from temperatures below 10°C. Ideal for USDA zones 10–11.
Nutrient
Heavy feeder; benefits from regular applications of balanced fertilizer during the growing season. Supplement with phosphorus to promote abundant flowering.
Soil
Grows best in rich, fertile, well-drained soil amended with organic matter. Tolerates slightly acidic to neutral pH. Avoid heavy clay or poorly drained substrates.
Maintenance
Moderate maintenance. Prune regularly to control vigorous growth and encourage bushier form. Provide sturdy support for climbing. Remove spent flowers to prolong blooming.
Water
Prefers regular, consistent watering to keep soil evenly moist. Reduce watering in winter. Avoid waterlogging, which can cause root rot.
Care Requirements
Sunlight
Requires full sun for best flowering, needing at least 6–8 hours of direct sunlight daily. Insufficient light results in leggy growth and reduced blooms.
Temperature
Thrives in warm, tropical temperatures between 20–30°C. Frost-sensitive; protect from temperatures below 10°C. Ideal for USDA zones 10–11.
Nutrient
Heavy feeder; benefits from regular applications of balanced fertilizer during the growing season. Supplement with phosphorus to promote abundant flowering.
Soil
Grows best in rich, fertile, well-drained soil amended with organic matter. Tolerates slightly acidic to neutral pH. Avoid heavy clay or poorly drained substrates.
Maintenance
Moderate maintenance. Prune regularly to control vigorous growth and encourage bushier form. Provide sturdy support for climbing. Remove spent flowers to prolong blooming.
Water
Prefers regular, consistent watering to keep soil evenly moist. Reduce watering in winter. Avoid waterlogging, which can cause root rot.
Care Requirements
Sunlight
Requires full sun for best flowering, needing at least 6–8 hours of direct sunlight daily. Insufficient light results in leggy growth and reduced blooms.
Temperature
Thrives in warm, tropical temperatures between 20–30°C. Frost-sensitive; protect from temperatures below 10°C. Ideal for USDA zones 10–11.
Nutrient
Heavy feeder; benefits from regular applications of balanced fertilizer during the growing season. Supplement with phosphorus to promote abundant flowering.
Soil
Grows best in rich, fertile, well-drained soil amended with organic matter. Tolerates slightly acidic to neutral pH. Avoid heavy clay or poorly drained substrates.
Maintenance
Moderate maintenance. Prune regularly to control vigorous growth and encourage bushier form. Provide sturdy support for climbing. Remove spent flowers to prolong blooming.
Water
Prefers regular, consistent watering to keep soil evenly moist. Reduce watering in winter. Avoid waterlogging, which can cause root rot.
Seasonal Behavior
Spring
Vigorous new growth emerges in spring. This is the ideal time for pruning, repotting, and beginning a regular fertilization schedule.

Autumn
Flowering continues into autumn in warm climates. Growth slows as temperatures decline. Reduce watering and fertilization as the plant prepares for rest.

Winter
Semi-dormant in winter. Protect from cold and frost. In tropical climates, may continue light flowering. Reduce watering but do not allow soil to dry completely.

Summer
Peak flowering season with large, trumpet-shaped golden-yellow blooms appearing continuously. Water and feed regularly to sustain prolific flowering.

Seasonal Behavior
Spring
Vigorous new growth emerges in spring. This is the ideal time for pruning, repotting, and beginning a regular fertilization schedule.

Autumn
Flowering continues into autumn in warm climates. Growth slows as temperatures decline. Reduce watering and fertilization as the plant prepares for rest.

Winter
Semi-dormant in winter. Protect from cold and frost. In tropical climates, may continue light flowering. Reduce watering but do not allow soil to dry completely.

Summer
Peak flowering season with large, trumpet-shaped golden-yellow blooms appearing continuously. Water and feed regularly to sustain prolific flowering.

Seasonal Behavior
Spring
Vigorous new growth emerges in spring. This is the ideal time for pruning, repotting, and beginning a regular fertilization schedule.

Autumn
Flowering continues into autumn in warm climates. Growth slows as temperatures decline. Reduce watering and fertilization as the plant prepares for rest.

Winter
Semi-dormant in winter. Protect from cold and frost. In tropical climates, may continue light flowering. Reduce watering but do not allow soil to dry completely.

Summer
Peak flowering season with large, trumpet-shaped golden-yellow blooms appearing continuously. Water and feed regularly to sustain prolific flowering.

Seasonal Behavior
Spring
Vigorous new growth emerges in spring. This is the ideal time for pruning, repotting, and beginning a regular fertilization schedule.

Autumn
Flowering continues into autumn in warm climates. Growth slows as temperatures decline. Reduce watering and fertilization as the plant prepares for rest.

Winter
Semi-dormant in winter. Protect from cold and frost. In tropical climates, may continue light flowering. Reduce watering but do not allow soil to dry completely.

Summer
Peak flowering season with large, trumpet-shaped golden-yellow blooms appearing continuously. Water and feed regularly to sustain prolific flowering.

Seasonal Behavior
Spring
Vigorous new growth emerges in spring. This is the ideal time for pruning, repotting, and beginning a regular fertilization schedule.

Autumn
Flowering continues into autumn in warm climates. Growth slows as temperatures decline. Reduce watering and fertilization as the plant prepares for rest.

Winter
Semi-dormant in winter. Protect from cold and frost. In tropical climates, may continue light flowering. Reduce watering but do not allow soil to dry completely.

Summer
Peak flowering season with large, trumpet-shaped golden-yellow blooms appearing continuously. Water and feed regularly to sustain prolific flowering.

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Botanical earth
support@botanical.earth
© 2026 Botanical Earth. All Rights Reserved