Arrow Poison Plant (Pleradenophora Bilocularis) is a perennial shrub in the Euphorbiaceae family with moderate care difficulty. It requires low watering and full sun light in USDA hardiness zones 8-11. This plant is toxic to cats and dogs — keep it out of reach of pets.

Pleradenophora bilocularis is a shrub or small tree native to the deserts of southwestern Arizona, Sonora, and Baja California, known for its distinctive glandular leaves and toxicity.

Arrow Poison Plant

Arrow Poison Plant

Pleradenophora Bilocularis

Pleradenophora bilocularis is a shrub or small tree native to the deserts of southwestern Arizona, Sonora, and Baja California, known for its distinctive glandular leaves and toxicity.

Quick Facts

Type
shrub
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Low
Light
Full Sun
Hardiness Zones
8-11

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:sandy, loamy, gravelly
Indoor:No
Outdoor:Yes
Garden Use:ornamental, drought tolerant

Care Calendar

Monthly care tasks for Arrow Poison Plant

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
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Oct
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Nov
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Dec
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Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Arrow Poison Plant
Arrow Poison Plant detail

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Taxonomy

Family:Euphorbiaceae
Genus:Pleradenophora