Cucumber

Cucumis sativus

Cucumber. 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 – Cucumber, Department of Agriculture Sri Lanka, accessed 2026-10-23: https://doa.gov.lk/hordi-crop-cucumber/; confirm for your microclimate.

Spacing

In-row spacing: 100 cm
Between-row spacing: 100 cm

1 m × 1 m for a monoculture. Both sides are stated, so both numbers are stored.

Other sourced figures

Soil pH: 5.5–7.5

From farmer field experience

Based on hands-on growing experience from Sri Lankan farmers. Not yet verified against official sources.

Days to first harvest: 50–60 days: Days from sowing.; Farmer field notenoted Oct 2026
Harvest window: 30–40 days: Picking period.; Farmer field notenoted Oct 2026

Market months

Prices vary by week, market, and year. This is not financial advice.

Based on hands-on growing experience from Sri Lankan farmers. Not yet verified against official sources.

Higher prices: October–December
The gap between Yala and Maha.
Farmer field notenoted Oct 2026
Higher prices: April–May
The gap between Yala and Maha.
Farmer field notenoted Oct 2026
Lower prices: January–March
The gap between Yala and Maha.
Farmer field notenoted Oct 2026
Lower prices: July–August
The gap between Yala and Maha.
Farmer field notenoted Oct 2026

Planting windows

Colombo — Low Country Wet Zone

Year round: Year round
Direct sow
Farmer field experience. Using 50–60 stored days. First harvest is about 50–60 days after planting. Calculated from the stored day count and the planting month. It is not a separate harvest calendar.
HORDI: suitable to cultivate in the wet zone year round, and in the dry zone in the Maha season. Maha months are not stated, so no dry-zone window is stored. Spacing is given as 1 m x 1 m without saying which side is the row.
Unverified — based on HORDI Crop - Cucumber, Department of Agriculture Sri Lanka, accessed 2026-10-20: https://doa.gov.lk/hordi-crop-cucumber/; confirm for your microclimate.

When to plant Cucumber in Colombo