Giant Fennel

Ferula communis, Apiaceae

Zones

7–10

Layer

Herbaceous

Lifespan

Perennial

Growth

Slow

Guild Roles

ProducerWindbreakBeneficial Insect HabitatDynamic Accumulator

Growing Conditions

Sun

Full Sun (preferred)

Water

Low (established)Moderate (seedling)

Soil pH

6.5 – 8

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

AsafoetidaFerula assa-foetida

Pollinator SharingBeneficial Insect Habitat

Pot MarjoramOriganum onites

Pest DeterrentWind Protection

Field EryngoEryngium campestre

Wind ProtectionPollinator Sharing

Balm-leaved ArchangelLamium orvala

Shade ProvisionPollinator Sharing

Antagonistic Plants

Cambridge Milk ParsleySelinum carvifolia

Giant Ferula can overshadow and suppress smaller umbellifers

HogweedHeracleum sphondylium

Both large Apiaceae plants compete for light and space, with potential allelopathic interactions

Mountain ParsleyPeucedanum oreoselinum

Both are large umbellifers that compete for space, light, and nutrients in similar habitats

Uses

Functions

Architectural PlantTraditional Craft MaterialWildlife HabitatMediterranean Landscaping

Edible Parts

Young ShootsFlower Buds

Medicinal Uses

Digestive AidRespiratory ConditionsAnti-InflammatoryAntispasmodic

Common Questions

What zones does Giant Fennel grow in?

Giant Fennel grows in USDA hardiness zones 7 through 10.

What are good companion plants for Giant Fennel?

Good companions for Giant Fennel include Asafoetida, Pot Marjoram, Field Eryngo, Balm-leaved Archangel.

Design guilds with Giant Fennel and see companion relationships visually.

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