A green one symbolises livelihood. A yellow one symbolises illness if it is eaten. Other Explanations for WatermelonContinue ExploringWatermelon If you dreamed of watermelon growing on the vine, this are a warning against casual love affairs. Otherwise, they forecast…Watermelon 1. Longing for leisure times, summer. 2. Pregnancy. 3. Sexuality.Watermelon A dream of sickness (Gypsy).