Watermelon Plant Plant Care

Watermelon Plant (Citrullus lanatus) belongs to the Cucurbitaceae family within the Citrullus genus. Watermelon Plant is native to Africa, Asia. Watermelon Plant is also known as Watermelon, Cantaloupe, Honeydew.

Watermelon Plant displays a trailing vine growth habit, reaching up to 1 ft tall with a spread of approximately 6 ft. Watermelon Plant produces yellow, funnel-shaped flowers.

Citrullus lanatus requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Watermelon Plant thrives in full sun.

Citrullus lanatus grows best at temperatures of 70–90°F. Watermelon Plant prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining sandy loam with organic matter. Good drainage is essential for Watermelon Plant to prevent waterlogging, which leads to root rot and fungal issues.

Feed Watermelon Plant every 2 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.

Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.

The PlantoScan app can remind you when to water and when to fertilize each plant.

Repot annually in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

Watermelon Plant can be propagated through seeds.

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Watermelon Plant is susceptible to aphids, spider mites, squash bugs. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

Watermelon Plant grows outdoors in USDA Zone 10b – 13b. It survives winters down to planting zone 10b. Watermelon Plant is native to Africa, Asia. In cooler regions, grow Watermelon Plant as a houseplant or bring it indoors before the first frost.