Plant PulseYard long bean
Vigna unguiculata
Yard long bean. Sourced figures stay next to their citation. Planting windows are listed for locations that have one. Unsourced fields say coming soon.
Unverified — based on HORDI Crop – Yard Long Bean, Department of Agriculture Sri Lanka, accessed 2026-10-23: https://doa.gov.lk/hordi-crop-yard-long-bean/; confirm for your microclimate.
Spacing
- In-row spacing
- 30 cm
- Between-row spacing
- 90 cm
Vine type: 30 cm between plants and 90 cm between rows. Bush type: 20 cm between plants and 60–75 cm between rows. The seed calculator uses the vine spacing, the wider of the two types. The page states between plants and between rows.
Other sourced figures
- Soil pH
- 5.6–7
From farmer field experience
Based on hands-on growing experience from Sri Lankan farmers. Not yet verified against official sources.
- Container volume: 15 L
- Two plants. Vine beans.
- Farmer field notenoted Oct 2026
- Container diameter: 30 cm
- Pot diameter about 30 cm.
- Farmer field notenoted Oct 2026
- Container depth: 30 cm
- Pot depth about 30 cm.
- Farmer field notenoted Oct 2026
- Plants per container: 2
- Plants in that pot.
- Farmer field notenoted Oct 2026
Planting windows
Colombo — Low Country Wet Zone
Official planting windows: coming soon.
From farmer field experience
Based on hands-on growing experience from Sri Lankan farmers. Not yet verified against official sources.
April–May
Direct sow
Farmer field notenoted Oct 2026
Low Country Wet Zone, April–May.
Unverified — based on Farmer field experience, noted 2026-10-23; confirm for your microclimate.
November–December
Direct sow
Farmer field notenoted Oct 2026
Low Country Wet Zone, November–December.
Unverified — based on Farmer field experience, noted 2026-10-23; confirm for your microclimate.
Mid Country
Official planting windows: coming soon.
From farmer field experience
Based on hands-on growing experience from Sri Lankan farmers. Not yet verified against official sources.
March–April
Direct sow
Farmer field notenoted Oct 2026
Mid Country, March–April.
Unverified — based on Farmer field experience, noted 2026-10-23; confirm for your microclimate.
October–November
Direct sow
Farmer field notenoted Oct 2026
Mid Country, October–November.
Unverified — based on Farmer field experience, noted 2026-10-23; confirm for your microclimate.
Up Country Wet Zone
Official planting windows: coming soon.
From farmer field experience
Based on hands-on growing experience from Sri Lankan farmers. Not yet verified against official sources.
Not recommended in this zone
Direct sow or transplant
Farmer field notenoted Oct 2026
Not recommended in this zone. Not recommended at this elevation in this note. This is reviewed field experience, not an official Department of Agriculture prohibition.
Unverified — based on Farmer field experience, noted 2026-10-23; confirm for your microclimate.
No when-to-plant page for a zone where this crop is not recommended.
Low Country Dry Zone
March–April
Direct sow
HORDI dry zone, rainfed Yala: March and April. The wet-zone line says after monsoonal rains and gives no month numbers, so it is not stored here.
Unverified — based on HORDI Crop – Yard Long Bean, Department of Agriculture Sri Lanka, accessed 2026-10-23: https://doa.gov.lk/hordi-crop-yard-long-bean/; confirm for your microclimate.
April–May
Direct sow
HORDI dry zone, irrigated Yala: April and May.
Unverified — based on HORDI Crop – Yard Long Bean, Department of Agriculture Sri Lanka, accessed 2026-10-23: https://doa.gov.lk/hordi-crop-yard-long-bean/; confirm for your microclimate.
Maha: November
Direct sow
HORDI dry zone Maha: end of November. The grid marks all of November because a month is the finest step.
Unverified — based on HORDI Crop – Yard Long Bean, Department of Agriculture Sri Lanka, accessed 2026-10-23: https://doa.gov.lk/hordi-crop-yard-long-bean/; confirm for your microclimate.
From farmer field experience
Based on hands-on growing experience from Sri Lankan farmers. Not yet verified against official sources.
April–May
Direct sow
Farmer field notenoted Oct 2026
Low Country Dry Zone, Yala, April–May, irrigated.
Unverified — based on Farmer field experience, noted 2026-10-23; confirm for your microclimate.
November
Direct sow
Farmer field notenoted Oct 2026
Low Country Dry Zone, Maha, November, rainfed.
Unverified — based on Farmer field experience, noted 2026-10-23; confirm for your microclimate.