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Amaryllidaceae HERB OUTDOOR Placement Primary: Ornamental Other

Spider Lily

Hymenocallis

Identified By Marcs

The spider lily, scientifically known as Hymenocallis, is a striking perennial bulbous plant belonging to the Amaryllidaceae family. It is renowned for its uniquely shaped flowers featuring delicate, spider-like petals and a prominent central cup resembling a miniature daffodil. Native primarily to the tropical and subtropical regions of the Americas, these plants thrive in moist, humid environments and are frequently found near water bodies, swamps, or coastal areas. They produce deep green, strap-like foliage that provides an attractive contrast to their brilliant white or sometimes yellowish blossoms. Gardeners and landscape designers heavily favor the spider lily for its dramatic visual appeal, exquisite fragrance, and ability to brighten up shaded or damp garden beds where many other flowering plants struggle to survive.

Also known as: Basket Lily Peruvian Daffodil Beach Spider Lily

Toxicity & Safety

Is Spider Lily toxic to pets?

Yes, toxic to pets.

Spider lilies contain toxic alkaloids such as lycorine throughout the entire plant, with the highest concentrations residing in the bulbs. If ingested by cats or dogs, it can cause severe clinical symptoms including excessive drooling, intense vomiting, diarrhea, abdominal pain, lethargy, and tremors. Immediate veterinary attention is strongly recommended if pet ingestion is suspected to prevent severe dehydration and manage symptoms effectively.

Is Spider Lily toxic to humans?

Yes, toxic to humans.

All parts of the spider lily plant, especially the underground bulb, are considered toxic to humans due to the presence of harmful phenanthridine alkaloids like lycorine. Accidental ingestion of any part of the plant can lead to immediate gastrointestinal distress, severe nausea, vomiting, diarrhea, and systemic neurological symptoms. Contact with the plant sap may also cause skin irritation or allergic reactions in sensitive individuals, so gloves should be worn when handling bulbs.

Is Spider Lily safe during pregnancy?

Caution advised during pregnancy.

Due to the presence of potent toxic alkaloids such as lycorine within the bulbs and foliage of the spider lily, ingestion or internal application poses severe systemic risks. Pregnant women must strictly avoid handling internal remedies or consuming any part of this plant, as toxic compounds can induce severe maternal illness, uterine contractions, and potential complications endangering the health of both the mother and the developing fetus.

Growth & Dimensions

Height 30 - 90 cm
Width 30 - 60 cm
Growth Rate Moderate
Care Level Easy
Lifespan Perennial

Ideal Environment

Temperature 10°C - 35°C
Sunlight Hours 4 - 8 hrs/day
Sun Exposure Partial shade
Soil pH 6 - 7.5
Watering Interval 3 - 7 days
Humidity 50.00% - 90.00%
USDA Zone 8b - 11

Tropical and Subtropical Coastal Regions

Climate: Thrives in warm, humid climates with mild winters and plentiful annual rainfall, frequently found near wetlands, marshes, and coastal shores.

Soils: Loam Sandy Loam Clay
Annual Rainfall: 1000 - 2500 mm

Native Regions

Central America
Caribbean
South America
Southeastern United States

How to Care for Spider Lily

How should I handle watering requirements?

Spider lilies thrive in consistently moist or even wet soil conditions, making them ideal for rain gardens or pond edges. Ensure the soil never completely dries out during the active growing season. Reduce watering slightly only during the plant's winter dormancy period, but maintain adequate moisture to keep the bulb healthy.

How to Propagate Spider Lily

How to propagate Spider Lily by division?

Propagating spider lilies by division is the most reliable and efficient method. Carefully dig up mature clumps during the late dormant season or immediately after the flowering cycle finishes. Gently separate the smaller offset bulbs, known as bulblets, from the primary mother bulb, ensuring each division retains a healthy portion of roots. Replant the separated bulblets immediately into rich, moist soil at the same depth they were growing previously, spacing them appropriately to allow for future expansion and robust growth.

Common Diseases & Pests of Spider Lily

What is Stagonospora Curvata (Red Blotch) and how is it treated?

Fungal
Symptoms:

Reddish-brown or purple spots appear on the leaves, stems, and eventually the bulb scales. Over time, these spots enlarge, merge, and cause distorted leaf growth and premature defoliation, significantly weakening the overall vitality of the spider lily plant.

Treatment:

Remove and destroy heavily infected leaves immediately to prevent fungal spore dispersal. Apply a copper-based fungicide or a systemic fungicide specifically formulated for bulbous plants, ensuring complete coverage of both the foliage and the surrounding soil surface.

Prevention:

Avoid overhead watering to keep foliage dry and space plants adequately to ensure good air circulation around each specimen. Plant bulbs in well-drained soil despite their love for moisture, and practice good garden sanitation by clearing away dead plant debris.

Properties & Benefits of Spider Lily

Aromatic Plant

Uses & Health Benefits

What are the benefits of ornamental and aesthetic enhancement in Spider Lily?

While the spider lily is primarily cultivated for its striking visual beauty rather than direct health benefits, its presence in residential and public gardens greatly enhances human psychological well-being. The serene environment created by lush green foliage and uniquely elegant white blooms helps reduce daily stress, promotes mental relaxation, and fosters a deeper connection with nature during outdoor activities.

Precautions: Do not ingest any part of the plant, as all tissues contain poisonous alkaloids that can cause severe illness.

Key Nutrients / Compounds

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