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African nightshade

Crop details

African nightshade

Solanum scabrum
Family: Solanaceae

Categories

Quick stats

Family Solanaceae
Typical harvest 9.7 t/ha
Varieties 1
Pests & diseases 4
Seasons 0

Crop profile

Growth habit annual
Days to harvest 60-90
Main uses Leafy vegetable
Pollination insect
Origin / where it grows Tropical Africa

Weather, soil & spacing

Best temperature 18–24 °C
Rainfall 600–900 mm/yr
Altitude 0–2200 m
Best pH 6–
Soil type Fertile loam; high OM
Row spacing 40 cm
Plant spacing 30 cm
Planting depth 1 cm
Seed rate 3 kg/ha
Nursery days 25

Simple notes for farmers

About the crop: This crop is annual. You plant, grow and harvest it in one main season, then plant again. You can normally start harvesting about 60-90 days after planting, depending on care and variety.

Main use: Farmers mostly grow this crop for leafy vegetable.

Pollination: This crop is mainly pollinated by insect. Keeping flowers healthy and having insects like bees in the field helps improve fruit set and yields.

Where it grows: Tropical Africa It is grouped under: Vegetables.

Best climate: This crop does well in warm areas where the temperature is usually between 18 and 24 degrees Celsius. It prefers places that receive around 600 to 900 millimetres of rain in a year. It can grow from near sea level up to about 2200 metres above sea level.

Soil: The crop grows best in slightly acidic to near neutral soils, with a pH of about 6 to . It does well in fertile loam; high om. Good drainage is important, so avoid waterlogged spots.

Plant spacing: Plant in rows about 40 centimetres apart, and leave about 30 centimetres between plants in the row. This gives each plant enough space for roots and canopy to spread.

Planting depth: Dig planting holes or furrows about 1 centimetres deep so the roots sit firmly in the soil but are not buried too deep.

Seed or planting material: Use around 3 kilograms of seed or planting material per hectare. Spread or plant evenly so the field has a good stand without being overcrowded.

Nursery period: If you raise seedlings in a nursery, keep them there for about 25 days before transplanting to the main field, when they are strong and healthy.

Farmer guide (mwongozo wa mkulima)

Planting: Raise seedlings in a nursery; transplant at 4–5 true leaves.
Irrigation: Keep soil moist, avoid drought stress; mulch reduces evap.
Fertigation: Light N at establishment, split applications through harvest.
Pest scouting: Scout weekly for aphids, mites; remove diseased leaves.
Harvest: Begin leaf harvest 4–6 weeks after transplant; pick regularly.
Postharvest: Shade cool; avoid leaf bruising; short cold storage.

Nutrient schedule (mbolea kwa hatua)

# Stage DAP Product Rate Targets (kg/ha) Notes
1 Basal 0 NPK 17-17-17 80 kg/ha N: 17, P₂O₅: 17, K₂O: 17 Band at transplant
2 Topdress 25 CAN 26% N 80 kg/ha N: 18, P₂O₅: —, K₂O: — Light topdress; avoid leaf burn

Nutrient requirements

Nutrient Stage Amount Unit
N Basal 50 kg/ha
P₂O₅ Basal 25 kg/ha
K₂O Basal 40 kg/ha
N Topdress 30 kg/ha

Field images (picha shambani)

African nightshade
Primary
African nightshade
African nightshade
African nightshade
African nightshade
African nightshade
Name Country Maturity Traits
Local Nightshade KE 70 Broadleaf; tender
No fertilizer recommendations yet.
Name Type Symptoms Management
Aphids pest Soap sprays or registered insecticides; remove weeds hosts
Spider mites pest Maintain humidity; miticides if severe
Leaf spots disease Sanitation; avoid overhead irrigation; fungicides if needed
Leaf miners pest Remove infested leaves; rotation
System Typical Min Max Notes
rainfed smallholder 7 4 10 Fresh leaves
irrigated 10 6 15
open-field 12 8 18 Leafy biomass (fresh)
No season calendars yet.
Country Region Suitability
KE Highlands/Western