Farming and production regions
Pemba is strongly associated with cloves, while farms across the islands produce cassava, banana, coconut, rice and vegetables. Seaweed cultivation connects coastal households, including many women, with a different type of production system. A spice tour represents a mixed garden; it should not be used to infer that every spice shown has a large export industry.
Processing and added value
Clove drying, sorting and essential-oil processing add value to the crop. Seaweed can enter drying and trading channels and, where suitable processing exists, ingredient or cosmetic chains. The commercial specification must distinguish species, moisture, cleanliness and intended use. Food processing and cold storage also connect farms and fishing communities with the tourism economy.
Forests and ecotourism
Jozani–Chwaka Bay links forest, mangroves and coastal habitats and is known for its red colobus monkeys. Pemba's Ngezi forest offers another distinctive natural landscape. Ecotourism can combine guided forest visits, spice farming and community experiences. Visitors should use appropriate paths and local guides, while coastal farming must consider habitats, water quality and the effects of warming seas.
Cities, ports and markets
Zanzibar City and Stone Town are major commercial and visitor centres. Chake Chake, Wete and Mkoani serve Pemba; Nungwi and other coastal settlements connect to hospitality demand on Unguja. Export or procurement proposals should specify the island, collection point and actual port, since inter-island transport is not interchangeable with mainland road delivery.
Products and trade opportunities
Relevant opportunities include graded cloves, traceable spices, dried seaweed, vegetable supply, packaging and efficient drying equipment. For seaweed, buyers need a specification tied to the intended processing use. For cloves, moisture, cleanliness, stems and oil content matter. ZARI can present these value chains without describing statistical totals as stock held by a seller.
Risks and development priorities
Clove harvests vary sharply between years, and coastal aquaculture is exposed to heat, disease and changing growing conditions. Tourism creates demand but also competition for land, water and labour. A practical supply plan should use seasonal delivery commitments and contingency suppliers, with prices and quality agreed before making equipment or processing commitments.
Recent figures and comparability
The 2025 clove and seaweed figures are OCGS statistics reproduced by AgFin Atlas; the original download was unavailable during verification. The 2024 seaweed figure is also supported by a ministry report. No fresh-to-dry seaweed conversion is assumed. The strong clove rebound should not be mistaken for a stable annual growth rate or compared with all-Tanzania production.
Production, exports, area and growth rates are different indicators and must not be added together. Scroll the table horizontally on small screens.
Sources and references
Reference titles retain their original language. The review date does not mean that all figures refer to the same year.