🍉 Sangria Watermelon

Citrullus lanatus ‘Sangria’
The gold-standard Allsweet hybrid: long, blocky-oval, dark-striped melons of 20 to 24 pounds with dark red flesh — the eating-quality benchmark for its class.
Sun
Full sun, 8+ hours
Days to harvest
About 85 days from transplant (about 95 from seed)
Spacing
Hills 6-8 feet apart; vines run 10-15 feet
Soil pH
6.0-6.8, rich and well-drained
Zones
Warm-season annual; spring sowings in Florida

What it looks like

Sangria Watermelon (species photo)
Citrullus lanatus ‘Zloto Wolicy’ kz01. Photo: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0. Species photo — no verified photo of ‘Sangria Watermelon’ itself exists.
Sangria Watermelon (species photo)
Watermelon (Citrullus lanatus) species photo. Species photo — no verified photo of ‘Sangria Watermelon’ itself exists.
Sangria Watermelon (species photo)
Watermelon (Citrullus lanatus) species photo. Species photo — no verified photo of ‘Sangria Watermelon’ itself exists.

Why this variety

Sangria is a hybrid diploid Allsweet-type watermelon that seed companies and extension lists call the gold standard for eating quality in its class: long, blocky-oval fruit, dark-green stripes over lighter green, 20 to 24 pounds, with dark red flesh and medium seeds. It carries intermediate resistance to anthracnose race 1 and fusarium wilt races 0 and 1 — a real, documented disease package, not marketing fluff.

In Florida, that package matters as much as the flavor. Fusarium wilt lives in warm soils and ends susceptible vines early; Sangria’s intermediate resistance buys time, especially combined with rotation — never plant melons where melons or cucumbers grew last year — and with mulch keeping soil splash off leaves. Start transplants for the earliest fruit or direct-sow into soil above 70°F, and give each vine the space its 20-plus-pound fruit demands.

How to grow

Direct sow after the soil hits 70°F or warmer — watermelons germinate in heat or not at all. Plant about 1 inch deep in hills (3 to 4 seeds per hill, thin to the 2 strongest plants), or start indoors 3 to 4 weeks early in peat pots, because watermelons hate root disturbance. Black plastic mulch warms the soil, suppresses weeds, and keeps the fruit clean in Florida’s sandy beds.

Watermelons are space-hungry: plan for vines 10 feet or more, and do not crowd them, because crowded vines stay wet, and wet vines get disease. Row cover until flowering keeps cucumber beetles off young plants — they vector bacterial wilt, which has no cure — then remove it so bees can reach the flowers. Rotate beds: never follow melons, cucumbers, or squash with melons, because fusarium wilt builds up in warm soil and waits for the next crop.

Water & feeding

Deep, regular water during vine growth and fruit set — then TAPER OFF as fruit approaches ripeness. This is the single biggest flavor lever you have: a melon watered heavily right up to harvest tastes watery, while one tapered at the end concentrates its sugars. Mulch holds the even moisture that prevents cracking and blossom-end problems in Florida’s cycle of downpour and drought.

Feed at planting with worm castings worked into the hill, and side-dress at flowering. Too much nitrogen late in the season means lush vines and bland fruit — the plant version of studying for the wrong exam. A little potassium as fruit sizes helps sugars and rind quality.

Common problems

  • Cucumber beetles: row cover until flowering; they vector bacterial wilt, which has no cure — prevention beats cure.
  • Fusarium wilt: a soil fungus that yellows and collapses vines, worst in warm soil. Rotate beds for years, not months, and prefer resistant varieties where they exist.
  • Anthracnose and gummy stem blight: leaf and fruit spots that love warm, wet weather. Airflow, mulch, base watering, and resistant varieties are the defense; remove badly spotted leaves rather than letting them rain spores onto fruit.
  • Melonworm and pickleworm: Florida caterpillars that chew leaves and bore into fruit. Hand-pick, watch for frass, and use Bt early on young caterpillars.
  • Poor fruit set: usually a lack of pollinators. Hand-pollinate with a paintbrush if bees are scarce — female flowers carry a tiny melon at the base.

Harvest

Ripe when the ground spot turns creamy yellow, the nearest tendril dries, and a thump gives a deep hollow note. Harvest by the trio of signs, not by the calendar alone: a creamy-yellow ground spot where the melon sat, a dried tendril nearest the fruit, and a deep, hollow thump. One sign alone lies; all three together rarely do. Cut the stem, lift — do not drag — and chill the melon before cutting for the crispest flesh.

Nerdy fact: Sangria’s Allsweet rind pattern — dark green stripes broken by lighter green — is so consistent that extension variety lists use it as a visual shorthand for the whole class. You can learn to spot an Allsweet-type melon from the driveway.

For the crop in general, see the Watermelon growing guide. Browse all plant & pest guides.

Saving seeds

Sangria is a hybrid diploid Allsweet-type watermelon that seed companies and extension lists call the gold standard for eating quality in its class: long, blocky-oval fruit, dark-green stripes over lighter green, 20 to 24 pounds, with dark red flesh and medium seeds. It carries intermediate resistance to anthracnose race 1 and fusarium wilt races 0 and 1 — a real, documented disease package, not marketing fluff. As a hybrid it does not come true from seed: saved seed would give you variable watermelons, not another 20-to-24-pound, dark-red-fleshed Sangria with that disease package. Direct sow after the soil hits 70°F or warmer — watermelons germinate in heat or not at all. Plant about 1 inch deep in hills (3 to 4 seeds per hill, thin to the 2 strongest plants), or start indoors 3 to 4 weeks early in peat pots, because watermelons hate root disturbance. The full method is in the Saving seeds section of the Watermelon guide.