Ferula tingitana aka Tangier Fennel

Ferula tingitana, or Tangier giant fennel, belongs to the Apiaceae family. It is a perennial from a broad Mediterranean range. Its native lands include the Iberian Peninsula and North Africa. It also grows from western and southwestern Türkiye to Israel. Plants for a Future lists Lebanon and Syria as well. Kew places the species in a subtropical climate. It is not native to Britain or Ireland.

This plant reaches about 6.6 feet (2 metres) tall. Its spread is about 3.3 feet (1 metre). It has a long taproot and dislikes disturbance around its roots. This matters when choosing its final place in a garden. The supplied species records give no details about its leaves or stems. They also give no description of its fruit. Flowers appear in June. Each flower has both male and female organs. Insects pollinate the flowers, and the plant is self-fertile.

Give it a sunny site with deep, fertile soil. Plants for a Future says it cannot grow in shade. Its recorded wild habitats include rocks, hedges, and damp, shaded places. In cultivation, it accepts sandy, loamy, and clay soils. Good drainage is important across these soil types. It tolerates mildly acid, neutral, and mildly alkaline conditions. Soil can be dry or moist. The listed USDA hardiness range is zones 8–11. The same source also gives an older UK zone of 9. This is not an RHS H-rating.

Cultivated beds are a listed garden setting for this species. Its height gives gardeners a clear guide when choosing space. Plan planting with the taproot in mind. Move young plants into their permanent places while still small. Sow ripe seed in a greenhouse in autumn. An alternative is greenhouse sowing in April. Pot up seedlings once they are large enough to handle. Protect young plants with mulch during their first winter outside. Autumn division is listed, but root disturbance makes it a poor choice.

Plants for a Future records gum taken from the root. It gives no further confirmed details about its use. It lists no known food or medicinal uses. It also lists no known hazards, rather than proof of safety. No specific pests or diseases appear in the supplied evidence. The source does not flag the plant as weedy.