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Citrullus lanatus
Growing calendar
Typical timing for central Japan (Kanto region). Shift it for your own climate, and record your actual dates.
JanFebMarAprMayJunJulAugSepOctNovDec
Sow / plantGrowingHarvest
Guides
- Planting Watermelon: Soil Warmth, Spacing and How Much Room One Plant Needs
- Training Watermelon Vines: Pruning Runners and Growing Up a Trellis
- Watermelon Pollination: Hand Pollinating and Why Fruit Drop at Golf Ball Size
- Watermelon Problems: Wilt, Anthracnose, Beetles and Split Fruit
- How to Tell When a Watermelon Is Ripe: Ground Spot, Tendril, Sound and Days
- Watermelon Growing Calendar: From Sowing to Cutting the First Fruit
Common problems
Start from what you can see on the plant.
Pests and diseases (43)
Problems recorded for this plant, most serious first.
Bacterial Spot
OccasionalDisease
Small water-soaked spots appear on the leaves, later turning brown with yellowing around them. Fruit develops water-soaked or scabby spots from which rot spreads.
Gummy Stem BlightFusarium Wilt of CucurbitsCucurbit Leaf BeetleWatermelon Mosaic VirusCucumber Green Mottle MosaicAnthracnoseVine OvergrowthSunscaldFruit CrackingBlossom End RotZucchini Yellow MosaicMelon Yellow Spot VirusPowdery MildewLate BlightCucumber Mosaic VirusSclerotinia RotSouthern BlightRoot-knot NematodeVerticillium WiltLeaf SpotDowny MildewNecrotic SpotFusarium WiltPhomopsis Root RotManganese ToxicityMosaic DiseaseSlime MoldBacterial Fruit BlotchFruit Rot DisorderFruit Soft RotPlant-parasitic NematodesSilver MottleCharcoal RotFusarium Wilt and Damping-offCottony LeakGreen Mottle MosaicBacterial WiltBacterial Brown SpotBrown RotSoftening DisorderChlorotic NecrosisBlack Dot Root Rot
