Watermelon Growing Guide

Watermelon

Crop Rotation Group

Cucurbits (Squash family) 

Soil

Rich soil with plenty of compost added. Often grown in widely spaced enriched hills, or in well-aged compost heaps that include some soil.

Position

Full sun.

Frost tolerant

No.

Feeding

After plants set fruit, feed twice, at two week intervals, with a water soluble plant food.

Companions

Beans, Corn, Radish and Potatoes.

Spacing

Single Plants: 2' 11" (90cm) each way (minimum)
Rows: 2' 11" (90cm) with 2' 11" (90cm) row gap (minimum)

Sow and Plant

Sow seeds 1 inch deep in rows, or in hills spaced 6 feet apart. After 2 weeks, thin to 2 plants per hill.
Our Garden Planner can produce a personalized calendar of when to sow, plant and harvest for your area.

Notes

Fruit size varies with variety. Small "icebox" watermelons mature quickly and take up less space compared to huge watermelons.

Harvesting

Ripe watermelons sound deep and resonant when thumped, and the curled tendril opposite the melon should be brown. Wipe clean and store indoors.

Troubleshooting

Control weeds early and then mulch to avoid trampling the vines after fruits have set.

Planting and Harvesting Calendar

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Plant Diseases which Affect Watermelon