Poisonbulb (Crinum asiaticum)

Also known as: Giant crinum lily, Spider lily

Crinum asiaticum, commonly known as poisonbulb, is a toxic plant native to the Pacific Islands. Ingestion can lead to symptoms such as nausea, vomiting, diarrhea, abdominal pain, and excessive salivation. In more severe cases, individuals may experience dizziness, muscle weakness, rapid heartbeat, respiratory distress, and fever. Immediate medical attention is recommended if poisoning is suspected.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting Toxicity

Attributes of Poisonbulb

Lifespan

Perennial

Plant Type

Herb

Plant Height

1 m

Spread

1.2 m to 1.8 m

Leaf Color

Green

Flower Size

15 cm to 20 cm

Flower Color

White Pink Purple Red

Images of Poisonbulb

Quickly Identify Poisonbulb

Strap-shaped leaves in a spiral rosette, reaching 4 feet (122 cm) in length.

Fragrant white flower clusters on 2-foot-tall (60 cm) stalks.

Lanceolate white petals measuring 2.4 to 4.7 inches (6-12 cm) in length.

Fruit with large seeds, each 0.8 to 1.75 inches (2-4.5 cm) across.

Prominent parallel veins with cross veins on light green leaves, 20-60 inches (50-150 cm) long.

Scientific Classification of Poisonbulb

Phylum

Vascular plants

Class

Monocotyledons

Order

Asparagales

Family

Amaryllis

Genus

Crinum

Species

Poisonbulb

Planting and Growing of Poisonbulb

Care Difficulty

Easy

Watering Schedule

Every 2 days

Sunlight Requirements

Full sun

Sunshine Duration

4-6 hours

Ideal Temperature

68-86℉

Soil Type

Potting Mix, Peat Mix

Soil pH

6.5-7.5

Fertilizer Type

Balanced

Pruning Season

Spring, Summer

Pruning Area

Branches, Leaves

Pruning Frequency

2 times a year

Repotting Season

Spring

Pot Type

Plastic, Ceramic

How to Water Poisonbulb?

Crinum asiaticum thrives on a balance of moist but well-drained soil. Ensure that you water it enough so that the top 2-3 inches of soil are moist but not soggy. This typically translates to around 500 milliliters per watering. Watering more frequently may be necessary during hot, dry periods, but be sure not to overwater and cause root rot.

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What Are the Sunlight Requirements for Poisonbulb?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 4-6 hours sunlight

Crinum asiaticum thrives best in an environment with full to partial sun, providing approximately 4-6 hours of sunlight daily. Adequate lighting encourages healthy foliage development and robust blooming cycles.

What is the ideal light condition for Crinum asiaticum? ›

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What Is the Ideal Temperature Range for Poisonbulb?

Ideal Temperature: 68 ~ 86℉

The ideal temperature range of 68-86°F provides optimal conditions for the metabolic activities and growth processes of Crinum asiaticum. In these conditions, the enzymatic reactions occur efficiently, supporting the plant’s growth and flowering potential.

What Soil is Best for Poisonbulb?

Soil type: Sandy soil, Loam, Clay soil

Soil PH: 6.5 ~ 7.5

Crinum asiaticum thrives in well-drained soils to prevent waterlogging, which can lead to root rot. Adequate drainage ensures that the roots receive sufficient oxygen and nutrients without the detrimental effects of standing water. A soil rich in organic material boosts the plant's growth by providing essential nutrients. This can be achieved by adding compost or well-rotted manure, which enhances soil fertility and structure. The plant benefits from soils that have moderate moisture retention. This ensures that the plant remains hydrated without excessive dryness or sogginess, promoting vigorous growth and blooming. More About Soil→

How to Fertilize Poisonbulb?

Fertilizer type: Balanced

For Crinum asiaticum, apply liquid fertilizer at a rate of one tablespoon per gallon of water during the growing season. For slow-release fertilizer, use approximately half a cup per plant annually, spread evenly around the base of the plant. More About Fertilizing Techniques→

How to Prune Poisonbulb?

Pruning Time: Spring, Summer, Autumn, Winter

Begin by gathering your tools, such as sharp pruning shears and gloves for protection. Start by examining the plant for any dead, diseased, or damaged leaves. Cut these leaves back to the base of the plant to improve airflow and reduce the risk of disease. After removing problematic leaves, focus on shaping the plant. Trim back overgrown areas to control size, ensuring that you cut just above a leaf node to encourage new growth. This will also help maintain the plant's tidy, elegant appearance. Conduct monthly maintenance checks for the plant, removing any yellow or withered foliage. This not only keeps the plant attractive but also allocates more energy towards producing robust blooms and healthy leaves. More About Pruning Techniques→

How to Propagate Poisonbulb plant?

Propagate Time: Spring, Early summer

Sow the seeds in a well-draining potting mix in a planting tray. Ensure the seeds are spaced appropriately for air circulation. Lightly cover the seeds with soil and water gently.

Carefully dig up the parent plant during the early summer. Separate the bulbs, ensuring each bulb has roots attached. Replant the bulbs immediately in a suitable location.

After planting seeds or bulbs, water thoroughly to settle the soil. Subsequent watering should be moderate until signs of growth appear to prevent overwatering.

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How to Repot Poisonbulb plant?

Repotting frequency: Every 2-3 years

Crinum asiaticum needs repotting when roots begin to emerge from the drainage holes or when the plant becomes root-bound, causing stunted growth or yellowing leaves. This typically signals the need for a larger pot and fresher soil to support the plant's continuing development.

Select a pot that is 2-3 inches larger in diameter than the current one, with ample drainage holes to prevent root rot. A slightly larger pot provides room for growth, ensuring the plant remains healthy and vibrant, and minimizes the risk of overwatering by promoting adequate drainage.

Opt for a rich potting mix with excellent drainage like a combination of loam, peat, and sand. This mix ensures the roots receive necessary nutrients and maintain proper air circulation, reducing the risk of soil compaction and promoting robust plant health over time.

Toxicity of Poisonbulb

Is Poisonbulb toxic to humans?

As suggested by its name, poisonbulb is likely to be toxic if consumed, although this has yet to be verified. The bulb is regarded as the most toxic section of the plant; however, every part may pose a risk due to the presence of alkaloids. Additionally, touching the plant could lead to adverse reactions, so it is advisable to wear gloves when interacting with it.

Is Poisonbulb toxic to cat?

Poisonbulb is highly toxic to felines. If a cat accidentally consumes any part of this plant, it poses a significant risk of poisoning, which can result in a range of health complications. While the exact toxic compounds are not clearly identified, it is vital for cat owners to understand the threats this plant poses. Ingestion may result in physical discomfort or illness, making it essential to observe cats closely for any symptoms of distress. Seeking immediate veterinary attention is critical for any cat that has ingested poisonbulb, ensuring their safety and overall health.

Is Poisonbulb toxic to dog?

Poisonbulb is a highly toxic plant for dogs, presenting significant health hazards if any part of it is ingested. Dogs may inadvertently eat portions of the poisonbulb, resulting in poisoning. Every part of the plant, encompassing leaves, stems, and bulbs, is toxic and must be kept out of accessible areas for pets. Indications of poisoning in dogs can manifest as vomiting, diarrhea, drooling, abdominal discomfort, and in extreme cases, seizures. If a dog consumes any part of the poisonbulb, it is crucial to obtain immediate veterinary assistance to secure the most favorable outcome for the animal.

WARNING

The judgment on toxicity and danger is for reference only. We DO NOT GUARANTEE any accuracy of such judgment. Therefore, you SHALL NOT rely on such judgment. It is IMPORTANT TO SEEK PROFESSIONAL ADVICE in advance when necessary.

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