Lebanese Cucumber
Cucumis sativus
Lebanese cucumbers are fast-growing, productive vines that thrive through the warmer months in coastal subtropical gardens. Give them fertile soil, steady moisture and a strong trellis, then harvest frequently for crisp, tender fruit.

Overview
At a Glance
Peak Planting Window
September to March
Seasonal Role
Warm-season climbing crop
Difficulty
Easy
Planting Method
Direct sow or transplant
First Harvest
7–10 weeks
Sun
Full sun
Water
High
Heat Tolerance
High
Humidity Tolerance
High (good airflow recommended)
Family
Cucurbitaceae
Category
Vegetable
Planting Calendar
Monthly Planting Guide
Month-by-month suitability for coastal subtropical Australia.
Rationale
Why This Planting Window
Lebanese cucumbers grow quickly in warm soil and perform best during frost-free spring and summer conditions. Warm planting windows support rapid establishment, reliable flowering and steady fruit production, while cooler temperatures slow growth and increase the risk of poor establishment.
Reference
Growing Information
Lifecycle
Annual
Ideal Soil Temperature
18–30°C
Germination
4–10 days
Transplant Ready
3–4 weeks
Soil
Rich, fertile, well-drained soil enriched with mature compost
Soil pH
6.0–7.0
Plant Spacing
40–60 cm when trellised
Row Spacing
100–150 cm
Frost Tolerance
Low
In the garden
Plant Care
Feeding
Prepare the soil with mature compost and aged manure before planting. Apply a balanced feed during early growth, then use regular light feeding while plants are flowering and producing fruit.
Watering Guidance
Keep the soil consistently moist, particularly during flowering and fruit development. Water deeply at the base and avoid irregular watering, which can produce bitter or misshapen fruit. Limit unnecessary leaf wetness in humid conditions.
Avoid Nearby
- Avoid crowding with other vigorous cucurbit crops where airflow, sunlight and trellis space are limited
Watch out for
Problems & Prevention
Common Pests
Cucumber beetles, aphids, fruit fly, mites, caterpillars and pickleworms.
Common Diseases
Powdery mildew, downy mildew, bacterial wilt, mosaic viruses and root rot.
Common Mistakes
Planting into cold soil, allowing plants to dry out, overcrowding vines, providing inadequate support, inconsistent harvesting and leaving overmature fruit on the plant.
Picking
Harvest
First Harvest
7–10 weeks
Harvest Window
Harvest every one to three days once fruit production begins
Harvest Indicators
Harvest while fruit is firm, glossy and evenly coloured, before the seeds become prominent. Lebanese cucumbers are best picked young and regularly to encourage continued flowering and fruit production.
Standard
SGGS Details
Subtropical Gardener Growing Standard — profile metadata.
- SGGS Code
- VEG004
- Version
- 1
- Confidence
- High
- Seasonal Role
- Warm-season climbing crop
- Crop Champion Month
- October
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