Woodbridge Poison (Isotoma Hypocrateriformis) is a perennial herb in the Campanulaceae family with moderate care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 9-11. This plant is toxic to cats and dogs — keep it out of reach of pets.

Isotoma hypocrateriformis is a small herbaceous perennial plant native to Western Australia, known for its vibrant star-shaped blue to violet flowers.

Woodbridge Poison

Woodbridge Poison

Isotoma Hypocrateriformis

Isotoma hypocrateriformis is a small herbaceous perennial plant native to Western Australia, known for its vibrant star-shaped blue to violet flowers.

Quick Facts

Type
herb
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Moderate
Light
Full Sun, Partial Shade
Hardiness Zones
9-11

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:sandy, loamy, rocky
Indoor:No
Outdoor:Yes
Garden Use:groundcover, ornamental

Care Calendar

Monthly care tasks for Woodbridge Poison

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

Woodbridge Poison
Woodbridge Poison detail

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Taxonomy

Family:Campanulaceae
Genus:Isotoma