Plant Pulse

When to plant Yard long bean in Low Country Dry Zone

When to plant Yard long bean in Low Country Dry Zone. Stored windows: March–April; April–May; Maha (November). Ranges from different sources are not averaged.

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.

Stored planting windows

  • 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.

Season ranges

Two or more season ranges are stored. They are not joined. A month is marked only when it falls inside a stored range.

  • Yala is stored from more than one source, and the months do not match. Yala (FAO) is Mar–Aug. Yala (National Drought Plan) is Apr–Sep. Both ranges are shown. They are not averaged.
  • Maha is stored from more than one source, and the months do not match. Maha (FAO) is Sep–Feb. Maha (National Drought Plan) is Oct–Mar. Both ranges are shown. They are not averaged.

Agricultural seasons

  1. Yala (FAO): Mar–Aug (Agricultural)

    Improvement of plant nutrient management for better farmer livelihood, food security and environment in Sri Lanka, J.D.H. Wijewardena, Department of Agriculture, hosted by FAO, accessed 2026-10-20: https://www.fao.org/4/ag120e/AG120E12.htm

  2. Maha (FAO): Sep–Feb (Agricultural)

    Improvement of plant nutrient management for better farmer livelihood, food security and environment in Sri Lanka, J.D.H. Wijewardena, Department of Agriculture, hosted by FAO, accessed 2026-10-20: https://www.fao.org/4/ag120e/AG120E12.htm

  3. Yala (National Drought Plan): Apr–Sep (Agricultural)

    National Drought Plan for Sri Lanka, Ministry of Environment, September 2020, accessed 2026-10-20: https://www.unccd.int/sites/default/files/country_profile_documents/NDP%20of%20Sri%20Lanka-Final%20Report-Sept%202020.pdf

  4. Maha (National Drought Plan): Oct–Mar (Agricultural)

    National Drought Plan for Sri Lanka, Ministry of Environment, September 2020, accessed 2026-10-20: https://www.unccd.int/sites/default/files/country_profile_documents/NDP%20of%20Sri%20Lanka-Final%20Report-Sept%202020.pdf

Methodology

Where do these planting months come from?
Each range is a stored planting window for this crop and climate. A month that is not listed has no stored window. It is not a recommendation to skip planting.
Why can the same season appear more than once?
When two sources give different months for the same season, both ranges are listed. They are not averaged, and the gap between them is not filled in.
How are grower notes different from official windows?
Farmer field notes are labelled Farmer field experience, with the month they were noted. They are not official department windows, and they are not yet verified against official sources.

Yard long bean crop page · Planting calendar for Yard long bean in Low Country Dry Zone