Giant Angraecum Plant Care
Angraecum expansum Thouars
Updated · Sources · How we source care data
Angraecum expansum is a striking orchid known for its large, elongated, deep green leaves that can grow up to 4 feet long. Native to Madagascar, this plant is popular among enthusiasts for its impressive size and elegant white flowers that bloom in clusters.
Every 7–14 days
Bright indirect light
60–80°F
50–70%
At a glance
How do you care for Giant Angraecum?
Water Giant Angraecum every 7–14 days, letting the top layer of soil dry out between waterings, and give it bright indirect light. It prefers temperatures of 60–80°F (16–27°C) and 50–70% humidity. Fertilize it every 2 months during the growing season.
Where Is the Giant Angraecum Native To?
What Is the Giant Angraecum?
Giant Angraecum (Angraecum expansum) belongs to the Orchidaceae family within the Angraecum genus. Giant Angraecum is native to Réunion. Giant Angraecum is also known as Large Angraecum.
Giant Angraecum displays an epiphytic, monopodial orchid growth habit, reaching up to 5 ft tall with a spread of approximately 3 ft. Giant Angraecum produces fragrant white flowers with long spurs.
Leaf size: approximately 12 inches.
How Often Should You Water a Giant Angraecum?
Angraecum expansum requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–14 days
Let soil partially dry between waterings
What Light Does the Giant Angraecum Need?
Giant Angraecum thrives in bright indirect light. Avoid placing Giant Angraecum in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Temperature and Humidity Does the Giant Angraecum Prefer?
Angraecum expansum grows best at temperatures of 60–80°F. Giant Angraecum prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–80°F
Humidity
50–70%
What Soil Mix Works Best for a Giant Angraecum?
Well-draining orchid mix with bark and sphagnum moss. Good drainage is essential for Giant Angraecum to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Giant Angraecum?
Feed Giant Angraecum every 2 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 2 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Giant Angraecum?
Repot every 2-3 years after flowering. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Giant Angraecum?
Giant Angraecum can be propagated through division, keiki propagation. Similar propagation techniques also apply to angraecum eburneum plant care, which shares the same genus.
Is the Giant Angraecum Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Giant Angraecum, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Giant Angraecum?
Giant Angraecum is susceptible to aphids, scale insects, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Giant Angraecum Need?
Giant Angraecum grows outdoors in USDA Zone 10b – 11b. It survives winters down to planting zone 10b. Giant Angraecum is native to Réunion. In cooler regions, grow Giant Angraecum as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 10b – 11b
Keep exploring plants
Giant Angraecum is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Angraecum genus — compare its care with other Angraecum species on PlantoScan.
Angraecum is part of the Orchidaceae plant family — browse all Orchidaceae genera and species.
Giant Angraecum thrives in bright light and direct sun — see other bright-light plants.
More Angraecum Species
Other Angraecum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Angraecum expansum Thouars, family Orchidaceae (first published in Nouv. Bull. Sci. Soc. Philom. Paris 1: Tabl. Angorkis (1809)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Giant Angraecum, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 10b – 11b, estimated from the plant's typical growing conditions.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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