Sweet Princess

Family: Cucurbitaceae Vegetable

Sink your spoon into Sweet Princess and savor its candy-bright sweetness—an inviting, rosy-red interior wrapped in a crisp, dark-green rind.

These picnic-size watermelons deliver a fine, juicy bite with a tender, seed-speckled texture that feels almost velvety, making them a standout for sharing and savoring straight from the garden. Grow Sweet Princess for a summer harvest that’s as beautiful on the porch as it is thrilling in the first bite.

Light: Full SunMaturity: 80 DaysHabit: Vine

Botanical illustration of Sweet Princess

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Apr 25th
Last Frost	Apr 25th
Transplant / Sow Outdoors	May 9th
Harvest Begins	Jul 28th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	80
Sun Requirements	Full Sun
Growth Habit	Vine
Support Needed	Trellis
Planting Depth	Normal
Germination Temp (°F)	75
Min Soil Temp (°F)	65
Min Night Temp (°F)	55
Harden Off (days)	12

Culinary Notes

Chef's Note

Sweet Princess is built for heat-to-fridge eating: its juicy, tender interior stays silky in the mouth, not watery or sharp. Serve it cold with bright acid and herbal punch, or quick-brine it so the sweetness snaps instead of slumps.

Best Uses

chilled cube-and-scoop snacking straight from the rind
quick pickle or brine for a sweet-tang pop
simple summer salad with minimal dressing so the fruit stays loud
lightly dressed sorbet/granita or blended with lime for an ice-cold refresher

Flavor Profile

candy-bright sweetness rosy-red, spoonable juiciness tender seed-speckled bite with a near-velvety texture crisp, clean finish from the dark rind

Kitchen Pairings

lime mint feta serrano chile honey

Frequently Asked Questions

How do I manage powdery mildew on Citrullus lanatus (sweet watermelon)?

Powdery mildew on watermelon typically starts as a white, dusty coating on older leaves in warm, dry spells with cool nights. Improve airflow by spacing vines as labeled and water the soil (not the leaves), then apply a labeled fungicide at the first signs and repeat according to the product label. Remove the most heavily infected leaves so the canopy stays productive through the 60–80 day fruiting period.

How often should I water Citrullus lanatus during the main growing phase?

During active vine growth and until the first fruits are sizing (roughly weeks 4–7), keep the root zone evenly moist with about 1–2 inches of water per week, adjusting for heat and rainfall. Once fruits begin to expand, reduce frequency slightly but don’t let the soil fully dry out—aim for consistently damp soil 2–4 inches down to prevent cracking and misshapen fruit. Stop heavy watering in the final 7–10 days before harvest to concentrate sweetness.

What signs show my Citrullus lanatus is ready to harvest?

Harvest when the tendril closest to the fruit stem turns brown and dries, and the fruit’s underside (where it rests on the ground) turns from pale to creamy yellow. Also look for a dull, “throaty” sound when tapped and a rind that resists fingernail pressure. Since these fruit take about 80 days, don’t rely on days alone—use the tendril + field-spot color cues together.