Growing Amaranth in Kilifi

Soil suitability analysis based on Kilifi's nutrient profile

Quick answer

Yes — Kilifi is well suited to Amaranth. Kilifi's soil (pH 6.24, slightly acidic) gives Amaranth a suitability score of 81/100. Match fertilizer to Kilifi's nitrogen and phosphorus levels for the best result.

Kilifi County is well suited to Amaranth, scoring 81/100 on ShambaIQ's soil-match model. Local soils average pH 6.24 — slightly acidic to near-neutral and inside the 5.5–7.5 band Amaranth prefers, so no lime is usually required. The main gap is nitrogen, phosphorus, and potassium — measured at N 0.8 g/kg, P 11 mg/kg, K 109 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly sandy loam soils suit Amaranth, which favours loam. On ShambaIQ's soil-match model, Amaranth is the #31 soil match of the 106 crops we assess for Kilifi County. At current prices (about KES 40/kg) and a typical 5,000 kg/acre yield, a well-managed Amaranth crop here can gross roughly KES 200,000 per acre.

81Suitability score

Soil & climate match

FactorKilifi soilAmaranth needsStatus
pH6.245.5–7.5OK
Nitrogen0.8 g/kgmin 1.2 g/kgLow
Phosphorus11 mg/kgmin 12 mg/kgLow
Potassium109 mg/kgmin 150 mg/kgLow
Rainfall700 mm500–1,500 mmOK
Altitude150 m0–2,400 mOK

Planting calendar for Kilifi

Long Rains· April–JuneMain season here

April
Sowing or Transplanting & CAN Basal
May
Thinning & 1st Top Dressing
June
Continuous Leaf Harvest

Short Rains· November–January

November
Sowing & Basal Fertilizer
December
Weeding & Top Dressing
January
Harvesting & Seed Saving

Dry Season· February–April

February
Irrigation & Continuous Harvesting
March
Top Dressing every 3 weeks
April
Replanting if stand exhausted

Top dressing guide

Product
CAN
Timing
Week 2-3 after thinning
Instruction
Top dress after thinning and again after each major leaf harvest to sustain tender regrowth
Bags per acre in Kilifi
1.51

Kilifi's nitrogen (0.8 g/kg) is 67% of the 1.2 g/kg Amaranth needs, so the standard 1 bag/acre is raised to 1.5. Split it across two applications to limit leaching.

Seed varieties for Kilifi

Varieties suited to Kilifi's 150 m altitude and 700 mm annual rainfall — 2 of 7 amaranth varieties we list.

KAT Gold (KAM 114)Lowland to Highland 20-2400m
KALRO · 80-100 days · 8-11 bags/acre
Golden seeded; dual purpose (grain & veg); highly drought tolerant.
Terere SmartLowland to Highland 20-2400m
KALRO · 75-90 days · 6-7 bags/acre
Whitish cream seeds; dual purpose; main stem is erect with a big panicle.

Economics

Market priceKES 40/kg
Expected yield 5,000 kg/acre
Estimated revenueKES 200,000/acre

Preferred textureLoam

Fertilizer prices

DAP
KES 3,500(6,500)
CAN
KES 2,875(5,700)
NPK 17:17:17
KES 3,275(5,600)
Urea
KES 3,500(5,500)
Lime
KES 1,500(1,800)

Green = subsidized · (Commercial) per 50kg bag