Blue Amaryllis Plant Care
Worsleya procera (Lem.) Traub
Updated · Sources · How we source care data
Worsleya is a genus of Brazilian plants in the amaryllis family Amaryllidaceae, cultivated as an ornamental because of its showy, pale violet flowers, often with a yellow stripe down the middle of each tepal. There is only one known species, Worsleya procera, native to eastern Brazil.
Every 10–14 days
Bright indirect to partial shade
60–75°F
50–70%
At a glance
How do you care for Blue Amaryllis?
Water Blue Amaryllis every 10–14 days, letting the top layer of soil dry out between waterings, and give it bright indirect to partial shade. It prefers temperatures of 60–75°F (16–24°C) and 50–70% humidity. Fertilize it every 6 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.
Where Is the Blue Amaryllis Native To?
What Is the Blue Amaryllis?
Blue Amaryllis (Worsleya procera) belongs to the Amaryllidaceae family within the Worsleya genus. Blue Amaryllis is native to eastern Brazil. Blue Amaryllis is also known as Empress of Brazil.
Blue Amaryllis displays a slow-growing, clumping perennial growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Blue Amaryllis produces large clusters of blue, bell-shaped flowers.
Leaf size: approximately 12 inches.
How Often Should You Water a Blue Amaryllis?
Worsleya procera requires watering every 10–14 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 10–14 days
Let soil partially dry between waterings
What Light Does the Blue Amaryllis Need?
Blue Amaryllis thrives in bright indirect to partial shade. Avoid placing Blue Amaryllis in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect to partial shade
What Temperature and Humidity Does the Blue Amaryllis Prefer?
Worsleya procera grows best at temperatures of 60–75°F. Blue Amaryllis prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–75°F
Humidity
50–70%
What Soil Mix Works Best for a Blue Amaryllis?
Well-draining, slightly acidic soil with good organic content. Good drainage is essential for Blue Amaryllis to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Blue Amaryllis?
Feed Blue Amaryllis every 6 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 6 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 Blue Amaryllis?
Repot every 2-3 years in early spring. 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 Blue Amaryllis?
Blue Amaryllis can be propagated through seeds, offsets.
Is the Blue Amaryllis Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
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 Blue Amaryllis?
Blue Amaryllis is susceptible to aphids, 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 Blue Amaryllis Need?
Blue Amaryllis grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Blue Amaryllis is native to eastern Brazil. In cooler regions, grow Blue Amaryllis as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Blue Amaryllis 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 Worsleya genus — compare its care with other Worsleya species on PlantoScan.
Worsleya is part of the Amaryllidaceae plant family — browse all Amaryllidaceae genera and species.
Blue Amaryllis thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Worsleya procera (Lem.) Traub, family Amaryllidaceae (first published in Herbertia 10: 89 (1944)) — World Flora Online record, IPNI name record.
- Pet toxicity: Blue Amaryllis is reported as toxic to pets in our plant data (not verified by the ASPCA), so treat it with caution. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- 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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