CULTURE: In Canada, watermelons are best started indoors 3-4 weeks before last frost. Start 3-4 seeds in a 3-4" pot. Transplant to the recommended plant spacing, do not break clumps apart. SOIL: Watermelons like well drained, sandy-silty loam, high in organic matter pH 6.0- 6.8 FERTILITY: Enrich with compost or well rotted manure in spring. Watermelons are heavy users of nitrogen, potassium and calcium. GERMINATION: For proper germination soil must be at least 72F/22C for 5 days. Cooler soil temperature will result in poor germination. SPACING: Plant in clumps 3-4 seeds per clump, 24" apart in rows 4-7ft apart. Close planting will result in smaller fruit size.