Home Crops In Kenya Growing Amaranth in Kenya: A Comprehensive Guide for Farmers

Growing Amaranth in Kenya: A Comprehensive Guide for Farmers

amaranth plantation

Amaranth is a versatile crop that has been grown for centuries in various parts of the world. Growing amaranth in Kenya, has gained popularity due to its numerous health benefits and high profitability. Amaranth is a great source of protein, vitamins, and minerals, making it a valuable addition to any diet. Additionally, the crop is easy to grow and can tolerate a wide range of soil conditions, making it suitable for farmers in different regions of Kenya.

If you’re a farmer in Kenya looking to venture into amaranth farming, this article will provide you with a comprehensive guide on how to grow amaranth successfully. We’ll cover everything from selecting the right variety of amaranth to planting, maintenance, and harvesting. By the end of this article, you’ll have all the information you need to start growing amaranth and reaping its numerous benefits.

Climate and Soil Requirements

Amaranth is a versatile crop that can tolerate a wide range of soil conditions, but it grows best in loam or silty loam soils with good water holding capacity. The optimal soil pH for amaranth is between 4.5 and 8.0. It is important to avoid water logging as this can negatively affect plant growth and yield.

Amaranth grows rapidly under hot-wet and full sunlight conditions, with few pest and disease problems. The crop can grow anywhere in Kenya, from sea level to 2400m above sea level. Optimal growth occurs at temperatures between 22-30°C, although it can tolerate heat and drought. However, amaranth is not well-suited to cool temperatures.

It is important to note that amaranth can be affected by extreme weather events such as flooding, drought, or heatwaves. Therefore, it is important to select a suitable site for planting and to monitor weather conditions closely.

Seed Selection and Planting

Amaranth farming is done by direct seeding or transplanting. The choice of planting method depends on seed availability, labor, and the growing season. Pure seeds and mixed seeds can be used for planting.

Before planting, it is important to select quality seeds to ensure good yield. Choose seeds that are uniform in size, shape, and color. Avoid seeds that are discolored or have cracks. It is also important to plant seeds that are disease-free to avoid losses due to diseases.

For direct seeding, make shallow furrows spaced at 75-90 cm apart. Amaranth may also be planted under irrigation. Amaranth farming does well in fertile soils with high organic matter content. Apply well decomposed farm yard manure (FYM) at the rate of 10 tons per hectare. The average seed requirement is 2 kg per acre.

For transplanting, seeds should be sown in a nursery bed. Prepare a nursery bed by loosening the soil and adding compost or manure. Sow the seeds in rows and cover with a thin layer of soil. Water the nursery bed regularly to keep the soil moist. After 4-6 weeks, the seedlings will be ready for transplanting.

When transplanting, choose a cloudy day or late in the afternoon to avoid exposing the seedlings to direct sunlight. Plant the seedlings in rows spaced at 75-90 cm apart. Water the seedlings immediately after transplanting and regularly thereafter.

Watering and Fertilization

Watering is an essential part of amaranth farming, especially during the dry season when the plants require more water. Amaranth plants are shallow-rooted, and therefore, require frequent watering to keep the soil moist. The frequency of watering will depend on the soil type, weather conditions, and the growth stage of the plants. Generally, the plants require 2-3 inches of water per week.

It is important to note that overwatering can lead to waterlogging, which can cause root rot and other diseases. Therefore, it is recommended to water the plants early in the morning or late in the evening to reduce water loss through evaporation. Additionally, mulching can help to retain soil moisture and reduce the frequency of watering.

Fertilization is also crucial for amaranth farming, as it helps to improve soil fertility and increase crop yields. Before planting, it is recommended to apply well-decomposed farmyard manure (FYM) at the rate of 10 tons per hectare. This will provide the plants with the necessary nutrients for growth.

During the growing season, it is recommended to apply nitrogen-rich fertilizers such as urea or ammonium nitrate at the rate of 50-70 kg per hectare. This should be done in two splits, with the first application being done 3-4 weeks after planting and the second application being done 6-8 weeks after planting.

It is important to note that excessive use of fertilizers can lead to nutrient imbalances, which can affect plant growth and yield. Therefore, it is recommended to conduct soil tests to determine the nutrient requirements of the plants and apply the fertilizers accordingly.


Pest and Disease Control

Amaranth is known to be relatively easy to grow, but like any other crop, it is still susceptible to pests and diseases. Here are some common pests and diseases that affect amaranth and how to control them:


Pest Symptoms Control Measures
Leaf miners White or yellowish trails on leaves Remove and destroy infested leaves, apply neem oil
Leaf rollers Leaves rolled and tied together with silk Remove and destroy infested leaves, apply neem oil
Cutworms Cut stems at soil level Handpick and destroy, apply insecticide
Aphids Curling, stunted leaves covered in sticky substance Remove and destroy infested leaves, apply neem oil
Flea beetles Small holes in leaves Remove and destroy infested leaves, apply insecticide
Weevils Notched edges on leaves Handpick and destroy, apply insecticide


Some common diseases that affect amaranth include:

  • Downy mildew
  • Powdery mildew
  • Leaf spot
  • Root rot

To control these diseases, it is important to practice good crop management. This includes:

  • Planting resistant varieties
  • Rotating crops
  • Practicing good sanitation
  • Avoiding overhead irrigation
  • Applying fungicides as needed

By following these pest and disease control measures, you can help ensure a healthy and successful amaranth harvest.

Harvesting and Storage

Harvesting of amaranth leaves should begin 2-3 weeks after germination or when the plants have reached a height of 20-30 cm. The leaves should be harvested by thinning and clipping. During thinning, the whole plant is uprooted. This is done to give the remaining plants enough space to grow and produce more leaves. The leaves should be harvested in the morning when the dew has dried up. This helps to preserve the quality of the leaves.

Amaranth grains should be harvested when they are fully mature. This is usually 90-120 days after planting. The grains should be harvested by cutting off the seed heads and drying them in the sun. The dried seed heads should be threshed to remove the seeds. The seeds should be cleaned and stored in a cool, dry place.

Proper storage of amaranth is important to maintain its quality and prevent spoilage. The leaves should be washed and dried thoroughly before storage. They can be stored in airtight containers or plastic bags in a refrigerator for up to 5 days. The grains should be stored in airtight containers in a cool, dry place. They can be stored for up to 6 months.

It is important to inspect the stored amaranth regularly for any signs of spoilage or insect infestation. If any spoilage or infestation is detected, the affected amaranth should be discarded immediately to prevent further damage to the rest of the stored amaranth.

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John Kamau is a highly experienced agriculture expert based in Kenya. He holds a degree in Agriculture from the University of Nairobi and has over 15 years of experience in the field. Throughout his career, John has been committed to promoting sustainable agriculture practices in Kenya. He has worked with small-scale farmers in rural communities to improve their crop yields, implement irrigation systems, and adopt environmentally friendly farming practices. John is also an expert in the use of technology in agriculture. He has worked with organizations to develop mobile applications that help farmers access information about weather patterns, market prices, and best practices for crop management. In addition to his work in Kenya, John has also been involved in agricultural projects in other African countries, including Tanzania and Uganda. He has served as a consultant for the United Nations Food and Agriculture Organization and has been recognized for his work with numerous awards.


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