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Plant guide

Sodom Apple.

Calotropis procera

Pronounced ka-LOT-ro-pis pro-SEER-uh

Also known as Apple of Sodom, French-cotton, Liberty Tree, Mudar, Prince-of-Wales crown, Roostertree, Seto / Gedla Akonda, Sodom's-milkweed

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giant milkweed
Photo by Jorge Armín Escalante-Pasos (CC BY) via iNaturalist

The Sodom Apple is a hardy shrub known for its unique, inflated fruit and milky sap. It thrives in arid environments and is quite resilient once established. You will find it produces clusters of star shaped flowers throughout the year.

Another photo of Sodom Apple
Photo by Richard Jacob (CC BY) via gbif

At a glance

Care level
Easy
Plant type
Shrub
Light
Full sun
Indoor light
Direct sun
Water
Every 10 to 20 days
Mature size
3 to 5 meters
Growth rate
Fast
Hardiness
USDA 10 to 12
Bloom time
Year round in warm climates

Care

This plant prefers full sun and well draining soil to prevent root rot. Watch for yellowing leaves which may indicate overwatering or poor drainage. Handle with care due to the irritating sap.

Watering
Allow the soil to dry out completely between waterings.
Feeding
Apply a balanced fertilizer sparingly during the growing season.
Pruning
Trim back occasionally to maintain shape and remove dead branches.
Repotting
Repot only when the plant becomes root bound in its container.
Soil
Sandy or rocky, well draining
Soil pH
6.0 to 8.5
Temperature
5 to 45°C
Humidity
10 to 50%
Drought tolerance
High
Lifespan
Perennial, typically 5 to 10 years
Fragrance
Light
Deer and rabbits
High

Signs it needs repotting

  • Roots growing out of drainage holes
  • Stunted growth despite proper care

Safety

People
All parts of the plant are toxic if ingested and the sap can cause severe eye irritation.
Pets
The milky sap is highly toxic to cats and dogs if ingested or if it contacts their skin.
Children
Keep children away from this plant as the toxic sap and irritating hairs pose a significant risk.
Contact allergens
The milky latex sap is a potent skin irritant and can cause blistering.
Airborne allergens
The fine hairs on the seeds can cause irritation if inhaled.
Edibility
The plant contains cardiac glycosides and is considered toxic if ingested.

How to identify it

  • Large, thick, waxy gray green leaves
  • Inflated, apple shaped green fruit
  • Star shaped white and purple flowers
  • Milky white sap in stems
  • Soft, corky bark texture
Height
2 to 5m
Spread
1.5 to 3m
Leaves
gray-green, evergreen
Flowers
white, purple, 2 to 3cm
Fruit
green, yellow, Year round

Problems to watch for

    Check your sodom apple from a photo

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    Growing it

    Propagation
    seed, cuttings
    When to plant
    spring, summer
    Overwintering
    Move to a frost free location if temperatures drop below freezing. Keep the soil on the drier side during the winter months.
    In containers
    It grows well in large containers, but ensure the pot is at least 40 liters to accommodate its root system.

    Seed

    1. 1. Collect mature pods.
    2. 2. Sow seeds in sandy, well draining soil.
    3. 3. Keep warm and lightly moist until germination.

    Plant in areas with full sun and well draining soil to mimic its natural arid habitat.

    Grows well with

    • Desert Rose · They share similar water and light requirements.

    Similar species

    • Giant Milkweed · It is a closely related species with larger, more intense purple flowers.

    Science

    Family
    Apocynaceae
    Genus
    Calotropis
    Order
    Gentianales
    Class
    Magnoliopsida
    Native range
    Northern Africa, Western Asia, and the Indian subcontinent.
    Conservation
    Not of conservation concern, often considered an invasive weed in some regions.

    It is a pioneer species that colonizes disturbed, arid, and saline environments.

    Value to wildlife
    larval host plant, nectar source
    Pollinators
    bees, butterflies
    Uses
    ornamental, fiber production, traditional medicine

    Through the year

    JFMAMJJASOND
    Flowering
    Fruiting
    Foliage

    Ecological indicators

    Soil reaction
    7/9
    Light
    8/9
    Temperature
    8/9
    Nutrients
    2/9
    Salinity
    6/9
    Moisture
    2/9

    Taxonomy resolved against GBIF.

    Questions people ask

    Is this plant safe for pets?
    No, it is toxic to animals and humans alike.
    Can I grow it in a pot?
    Yes, but it requires a very large container and excellent drainage.

    Where the name comes from

    The name Calotropis comes from the Greek words for beautiful and keel, referring to the flower shape.

    Good to know

    • The stems produce a strong fiber used for making ropes.
    • It is commonly known as the Sodom apple.
    • The plant is highly drought tolerant.
    • It thrives in poor, sandy soils.

    Also in

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    This guide was generated with AI on and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.