How to Grow Watermelon
Watermelon (Citrullus lanatus) is a fruit crop that yields 20–60 tonnes per hectare and takes 75–100 days from transplanting to harvest. It grows best in well-drained sandy loam, pH 6.0–7.5; warm soil temperature needed at planting, needs 400–600 mm of water, and is widely grown in Armenia, Azerbaijan, Turkey, Ghana. The current average farm-gate price on GeraFarm is about $0.18 per kg.
Yield / hectare
20–60 tonnes
Time to harvest
75–100 days from transplanting
Avg. price
$0.18/kg
Top regions
Armenia, Azerbaijan
About Watermelon
Watermelon is a major summer crop in Armenia's Ararat Valley and Azerbaijan's lowland areas. Large volumes are sold in Caucasus domestic markets; export potential to Russia and Gulf countries is growing.
Watermelon growing facts
- Scientific name
- Citrullus lanatus
- Category
- Fruit
- Yield per hectare
- 20–60 tonnes
- Time to harvest
- 75–100 days from transplanting
- Growing season
- April–June planting; harvest July–September
- Avg. farm-gate price
- $0.18 / kg
- Soil requirements
- Well-drained sandy loam, pH 6.0–7.5; warm soil temperature needed at planting
- Water requirements
- 400–600 mm; drip irrigation prevents foliar disease; irrigation stopped 10 days before harvest
How to grow watermelon, step by step
- 1
Prepare soil to the crop’s needs
Test and prepare your soil to match watermelon's requirement: Well-drained sandy loam, pH 6.0–7.5; warm soil temperature needed at planting. Correct pH and add organic matter before planting.
- 2
Plant in the right window
Plant during the recommended season: April–June planting; harvest July–September. Use certified seed or healthy planting material to avoid carrying over disease.
- 3
Irrigate to target
Supply 400–600 mm; drip irrigation prevents foliar disease; irrigation stopped 10 days before harvest. Even, well-timed moisture during the critical growth stages drives yield and quality.
- 4
Scout and protect against disease
Watch for Fusarium wilt and Phytophthora crown rot. Rotate crops, keep good spacing for airflow, and act early — AI disease-scan apps can warn you days before damage is visible.
- 5
Harvest at the right time
Harvest after 75–100 days from transplanting. Handle gently and cool quickly to cut post-harvest losses, which can otherwise reach 20–40%.
- 6
Sell direct for a better price
List your watermelon free on GeraFarm, set your own price, and sell direct to verified buyers — keeping the margin a broker would otherwise take.
Diseases & pests to watch for
- Fusarium wilt
- Phytophthora crown rot
- Gummy stem blight
- Aphids (virus vectors)
- Thrips
Smart-farming tips for watermelon
- AI seedless watermelon pollination scheduler optimises hive placement and timing for >95% pollination rates
- Hollow heart detection AI (acoustic sensor + ML) enables non-destructive quality sorting at pack-line
- Sugar (Brix) prediction from vine leaf NDVI models guides harvest timing for premium domestic sales
- Demand forecasting for Yerevan and Tbilisi markets helps farmers plan delivery quantities
- Drip tape reuse AI (salinity accumulation model) determines optimal drip tape replacement intervals
Get watermelon price alerts & growing tips
Seasonal watermelon price updates, planting reminders and disease alerts, plus when to sell for the best price — straight to your inbox. Free.
Growing watermelon — frequently asked questions
- How much watermelon can you grow per hectare?
- A well-managed watermelon crop yields 20–60 tonnes per hectare. Actual yield depends on variety, soil fertility, irrigation, and disease pressure — Armenia, Azerbaijan, Turkey, Ghana, Nigeria are among the leading growing regions. On GeraFarm, growers selling direct typically earn 40–60% more than through traditional middlemen.
- When is the watermelon growing season and how long until harvest?
- Watermelon is typically planted in: April–June planting; harvest July–September. It takes 75–100 days from transplanting to reach harvest. Timing your planting to local conditions is the single biggest factor in yield.
- What soil and water does watermelon need?
- Watermelon prefers Well-drained sandy loam, pH 6.0–7.5; warm soil temperature needed at planting. Water requirement: 400–600 mm; drip irrigation prevents foliar disease; irrigation stopped 10 days before harvest. Matching soil and irrigation to these needs is essential for a healthy watermelon crop.
- What are the main diseases and pests that affect watermelon?
- The most common threats to watermelon are Fusarium wilt, Phytophthora crown rot, Gummy stem blight. Crop rotation, certified seed or planting material, good spacing for airflow, and early scouting are the most reliable defences. AI disease-scan tools can flag many of these before they spread visibly.
- Is watermelon farming profitable?
- Watermelon sells for around $0.18 per kg at farm gate, and a hectare can yield 20–60 tonnes. Profitability hinges on yield, input costs, post-harvest losses, and the price you can negotiate — selling direct to buyers on GeraFarm removes the broker margin that usually takes 40–60% of the gap between farm-gate and retail price.
- Where can I sell watermelon after harvest?
- You can list watermelon free on GeraFarm and reach verified buyers — restaurants, wholesalers, processors and exporters — in 50+ countries. There are no listing fees, only a small commission on completed sales, and you set your own price in your local currency.