Arrowroot Farming in Kenya

Introduction

Arrowroot farming—locally known as nduma—is a thriving agricultural activity, particularly in Kenya’s marshy and water-abundant regions. As a water-loving crop with impressive nutritional benefits, arrowroots are gaining popularity among farmers and consumers alike.

Rich in essential minerals such as iron, phosphorus, potassium, manganese, and zinc, as well as vitamins B and C, arrowroots offer both health value and commercial potential. Their growing demand in urban markets and institutional kitchens makes them a reliable income source for smallholder farmers.

Popular Arrowroot Varieties in Kenya

Kenyan farmers typically grow the following two main varieties:

Dasheen: Known for its large tubers, this variety is suitable for farmers targeting high-volume yields.
Eddoe: The most widely grown variety in Kenya. It produces smaller tubers but is hardy and adaptable to various regions.

Ideal Growing Conditions for Arrowroots

Arrowroots thrive best in areas with the following conditions:

Soil Type: Deep, well-drained loamy soil
Soil pH: Between 5.5 and 6.5
Water Supply: Consistent moisture or year-round rainfall is essential
Climate: Preferably humid with evenly distributed rainfall

While traditionally planted in swampy areas, new technologies now allow for upland arrowroot farming, making cultivation possible in non-marshy regions through moisture retention techniques.

Land Preparation

Proper land preparation is crucial for successful arrowroot cultivation:

Deep ploughing is necessary to loosen the soil and improve aeration.
Depending on the soil texture, harrowing may be required two to three times to achieve a fine tilth.
If using upland technology, dig trenches lined with polythene to help retain moisture for the plants.

Planting Methods

Arrowroots are propagated using rhizomes, suckers, or rootstock. Select healthy rhizomes with at least two visible nodes for optimal germination.

Spacing: Plant suckers or rhizomes about 1.0m by 0.75m apart to ensure room for tuber expansion.
In upland farming, moisture must be retained artificially using trenches and polythene linings, especially during dry periods.

Pest and Disease Management

Arrowroots are relatively resistant to most pests and diseases, but occasional issues may arise:

Common Pests

Leaf rollers and colopodes: These can be managed using safe arsenical sprays and proper crop hygiene.

Common Diseases

Leaf mosaic, bacterial wilt, and banded leaf blight: Controlled using foliar sprays and fungicides such as maneb or copper-based products.

Regular crop rotation and using disease-free planting material also help reduce risks.

Harvesting

Arrowroots are ready for harvest 8 to 10 months after planting. Signs of maturity include:

Yellowing of leaves
Leaf shrinkage or wilting

Tubers should be harvested carefully to avoid bruising, which affects market quality.

Market Opportunities for Arrowroots in Kenya

Arrowroots are in high demand across various segments of the market:

Retail: Open-air markets, groceries, and supermarkets
Institutional buyers: Hotels, restaurants, schools, and hospitals
Processed products: Value-added options like arrowroot crisps and flour are growing in popularity

Thanks to their health benefits and growing urban appetite for traditional foods, arrowroots remain a consistently profitable crop.

Conclusion

Whether grown in traditional wetlands or using modern upland techniques, arrowroot farming is a promising venture for Kenyan farmers. With proper soil, water management, and marketing, it’s possible to achieve both nutritional and financial rewards from this humble but powerful root crop.

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