Single Wilson&
Smiling young woman holding a cut Wilson&
Single Wilson&
Smiling young woman holding a cut Wilson&

Watermelon Seeds,
Wilson's Sweet

4.327 ReviewsSKU: #WM161Min. seed count: 25
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Description

(Citrullus lanatus). Very unique spotted rind, with very crisp, sweet red flesh that bursts with rich, old-time watermelon flavor! One of the best melons we’ve tried in the last few years. Truly a winner! It used to be grown commercially, and was offered by several seed companies in the 1960s but has since become nearly extinct. A great variety for home and market gardeners, as it produces 15- to 20-lb fruit that keeps well.

Growing Tips: Wilson’s Sweet watermelon thrives in full sun and rich, well-drained soil. Incorporate compost or organic fertilizer before planting to boost vine and fruit development. Provide consistent watering during flowering and early fruit set. As fruits near ripeness, reduce irrigation to enhance sweetness. Ample space and good airflow help minimize disease risk in sprawling vines.

Plant Details

Botanical Name
Citrullus lanatus
Life Cycle
Annual
Growth Habit
Vining
Sun Requirement
Full sun
Days to Germinate
5–10
Days to Maturity
80–90
Planting Depth
1 in.
Plant Spacing
36–48 in.
Ideal Temperature
70–95°F
Frost Hardy
No

When to Grow

Start seeds indoors 3–4 weeks before your last frost date or sow directly once soil temperatures reach at least 70°F. Only transplant after all danger of frost has passed. If you’re not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'

How to Sow and Plant

  • Watermelon loves heat. In most climates, watermelon can be direct sown into the garden after frost season ends and soil is warm.
  • Soil should be rich and well amended with compost or manure.
  • Sow in full sun, preferably where no other melons, squashes or cucumbers have grown for at least three years, to reduce the likelihood of diseases.
  • Sow one-half inch deep and 12 inches apart, in rows 6 feet apart. If the soil temperature is right, sprouts appear in just a few days.
  • In shorter-summer climates, or to get an earlier harvest, seeds may be started indoors, 3-4 weeks prior to setting-out date.
  • Warm conditions yield fast germination; hold at 80 degrees or so. (Use a heating mat if necessary.)
  • Once seedlings appear, they need good light—at least half-day direct sun through a south-facing window or good artificial lighting.
  • Timing is critical—held in pots for too long the seedlings may become root-bound, which slows the plants down.

How to Grow

  • Thin if necessary to stand 2-3 feet apart in the row.
  • The vines soon begin to “run” and easily travel 6 feet from the roots as they grow. During this time, control weeds, keep the patch well watered, and watch for watermelon pests.

PESTS/SPECIAL CONSIDERATIONS

  • Cucumber beetle is possibly the most common pest. Spray with Spinosad as needed.
  • Watermelon plants also attract squash bugs. Pyganic or other pyrethrum-based insecticide is a good organic control.

How to Save Seeds

  • Allow fruit to ripen fully and cure on the vine before harvesting.
  • Scoop seeds from the flesh and rinse in a strainer to remove pulp.
  • Spread seeds on a screen or paper towel in a warm, dry place out of direct sunlight for 7-10 days.
  • Stir daily to ensure even drying.
  • Once completely dry, store in an labeled, airtight container in a cool, dark place.

FAQ

How large do Wilson's Sweet melons get?

This variety produces 15- to 20-pound fruit with a very distinctive spotted rind and crisp, sweet red flesh. The melons keep well. It used to be grown commercially, and was offered by several seed companies in the 1960s.

How far apart should the vines be spaced?

Sow about 1 inch deep and allow 36 to 48 inches between plants. The vines run easily 6 feet from the roots, and ample space and good airflow help minimize disease risk in sprawling vines.

How should I water Wilson's Sweet for the best flavor?

Keep water consistent through flowering and early fruit set, then reduce irrigation as the fruits approach ripeness to enhance sweetness. Work compost or organic fertilizer into the bed before planting to support vine and fruit development.
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