Bluish Giant Fennel (Ferula Glauca) is a perennial herb in the Apiaceae family with moderate care difficulty. It requires moderate watering and full sun light in USDA hardiness zones 7-10. This plant is toxic to cats and dogs — keep it out of reach of pets.

Ferula glauca is a tall perennial herbaceous plant native to the Mediterranean region, known for its blue-green foliage and large yellow flowers.

Bluish Giant Fennel

Bluish Giant Fennel

Ferula Glauca

Ferula glauca is a tall perennial herbaceous plant native to the Mediterranean region, known for its blue-green foliage and large yellow flowers.

Quick Facts

Type
herb
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Moderate
Light
Full Sun
Hardiness Zones
7-10

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:loamy, sandy, rocky
Indoor:No
Outdoor:Yes
Garden Use:specimen plant, pollinator attractor, architectural interest

Care Calendar

Monthly care tasks for Bluish Giant Fennel

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

Bluish Giant Fennel
Bluish Giant Fennel detail

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Taxonomy

Family:Apiaceae
Genus:Ferula