Formosan Jack-in-the-pulpit (Arisaema Formosanum) is a perennial herb in the Araceae family with moderate care difficulty. It requires moderate watering and partial shade or dappled_shade light in USDA hardiness zones 7-9. This plant is toxic to cats and dogs — keep it out of reach of pets.

Arisaema formosanum is a striking perennial plant native to Taiwan, characterized by its large trifoliate leaves and unique inflorescence structure typical of the Arisaema genus.

Formosan Jack-in-the-pulpit

Formosan Jack-in-the-pulpit

Arisaema Formosanum

Arisaema formosanum is a striking perennial plant native to Taiwan, characterized by its large trifoliate leaves and unique inflorescence structure typical of the Arisaema genus.

Quick Facts

Type
herb
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Moderate
Light
Partial Shade, dappled_shade
Hardiness Zones
7-9

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:loamy, peaty
Indoor:No
Outdoor:Yes
Garden Use:specimen, ornamental

Care Calendar

Monthly care tasks for Formosan Jack-in-the-pulpit

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

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

Formosan Jack-in-the-pulpit
Formosan Jack-in-the-pulpit detail

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Taxonomy

Family:Araceae
Genus:Arisaema