Steven's Hogweed (Heracleum Stevenii) is a perennial herb in the Apiaceae family with moderate care difficulty. It requires moderate watering and partial shade or full shade light in USDA hardiness zones 5-8. This plant is toxic to cats and dogs — keep it out of reach of pets.

Heracleum stevenii is a perennial herbaceous plant known for its large, intricate heads of white flowers and grey-sheened foliage.

Steven's Hogweed

Steven's Hogweed

Heracleum Stevenii

Heracleum stevenii is a perennial herbaceous plant known for its large, intricate heads of white flowers and grey-sheened foliage.

Quick Facts

Type
herb
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Moderate
Light
Partial Shade, Full Shade
Hardiness Zones
5-8

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:loamy, silty, peaty
Indoor:No
Outdoor:Yes
Garden Use:specimen, pollinator attractor, shade plant

Care Calendar

Monthly care tasks for Steven's Hogweed

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

Steven's Hogweed
Steven's Hogweed detail

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Taxonomy

Family:Apiaceae
Genus:Heracleum