OmniGrow

Giant fennel

SpeciesFerula heuffelii

Also called giant ferrel, Ferula communis

Follow0 followers
CardDiscussion
Giant fennel
Photo: a Wikimedia Commons contributor · CC BY-SA 3.0 · Wikimedia Commons

Fact sheet

every fact quoted from its source
WaterInfrequent, deep watering

“Water Infrequent, deep watering” — Giant Fennel (Ferula communis) – Care, Growing Guide & Benefits

Hardiness zones7-10

“Thrives in warm to hot conditions; generally hardy to USDA zones 7-10” — Giant Fennel (Ferula communis) – Care, Growing Guide & Benefits

Spacing12–18 in

“Sowing the seeds: Sow the seeds directly in the prepared soil after the danger of frost has passed in spring, typically around March or April, depending on your region. Plant the seeds around 1/4 inch deep, spacing them 12-18 inches apart.” — Giant Fennel (Ferula Communis) Care Guide: Water, Soil & Propagation - Plantiary

Height197–354.5 in

“Plant Height 200 - 300 cm” — Giant Fennel (Ferula communis) – Care, Growing Guide & Benefits

Propagationseed, division

“Propagate Giant Fennel from seed, sown in spring” — Giant Fennel (Ferula communis) – Care, Growing Guide & Benefits

Transplantearly spring

“transplanting is essential, do so in early spring” — Giant Fennel (Ferula communis) – Care, Growing Guide & Benefits

Ready whenafter flowering to manage its size and shape, and to prevent self-seeding

“Prune Giant Fennel after flowering to manage its size and shape” — Giant Fennel (Ferula communis) – Care, Growing Guide & Benefits

Toxicitynot toxic

“It is toxic to humans if ingested” — Giant Fennel (Ferula communis) – Care, Growing Guide & Benefits

Who grows this

No grower lists Giant fennel yet. Follow this card to hear when one does. Grow it yourself? Find your nursery and claim it.

Where this comes from