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Watermelon Growing Guide
Cucurbitaceae family
Days to Harvest90 days
SunlightFull Sun
Frost ToleranceNone
Spacing1/sqft (12" apart)
Germination4-12 days
HardinessVery Tender
Germ. Temp85°F
Start Indoors4 weeks before last frost
Companion Planting
Growth Stages
- Seedling
- Vining
- Flowering
- Fruiting / Harvest Ready
Planting Dates by Zone
Frequently Asked Questions
How long does it take to grow Watermelon?
Watermelon takes approximately 90 days from planting to harvest.
How much sun does Watermelon need?
Watermelon requires full sun (6+ hours direct sunlight per day).
How far apart should I plant Watermelon?
Plant Watermelon at 1/sqft (12" apart) using square foot gardening spacing.
Can Watermelon survive frost?
Watermelon is frost-sensitive and should not be exposed to frost.
What are good companion plants for Watermelon?
Good companion plants for Watermelon include Corn, Nasturtiums, Marigolds, Radishes. Avoid planting near Potatoes, Cucumbers.
How long does Watermelon take to germinate?
Watermelon seeds germinate in 4-12 days at an optimal temperature of 85°F.
When should I start Watermelon seeds indoors?
Start Watermelon seeds indoors 4 weeks before your last frost date, then transplant 2 weeks after last frost.
Plan Your Watermelon Garden
Track Watermelon from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
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