Advanced Search Filters

Plant Type
Hardiness Zone
Heat Zone
Sunset Zone
Sun Exposure
Soil Moisture
Water Requirement

CITRULLUS lanatus 'Shiny Boy'

Image of Citrullus lanatus 'Shiny Boy'

All-America Selections



Botanical Name

CITRULLUS lanatus 'Shiny Boy'

Plant Common Name

Shiny Boy Watermelon, Watermelon

General Description

Awarded a 2010 All-American Selections winner for its excellent texture, flavor and high performance, ‘Shiny Boy’ is a top notch watermelon for the home garden. Bred by the Taiwanese Known-You Seed Company, it produces high yields of large, glossy, rounded melons with rich red flesh that’s crisp and sweet. Fruits can reach up to 20 pounds (~9 kg) and take around 75 days to harvest post transplant. This cultivar is also disease resistant.

Watermelon is a tender annual tropical vine that needs a long, very warm growing season to produce its famous fruits. Yellow, bee-pollinated flowers appear among the attractive, deeply lobed, gray-green leaves throughout the growing season. Some flowers are male and others female. Female blooms have a bulbous ovary at the base, which will eventually become the fruit, and the males only have pollen-laden anthers.

Watermelons do not become sweeter after being harvested, so they must be picked when ripe. It is tricky to know when to harvest — especially considering the fruits take a while to mature and patience can wane. The best means is to monitor the tendril closest to the developing fruit. Once the tendril starts to turn brown, the fruit is ready. Another method is to keep an eye on stem health. When the stem is green and firm, the melon is still ripening; a soft withering green stem is an indication of ripeness, and a dry or unattached stem can mean over-ripeness. Finally, check the underside of the melon and give it a light knock. If the underside of the melon has turned from white to pale yellow and a hollow sound emanates from the fruit, it is probably ripe. When harvesting, cut the melon from its stem. Tearing the stem can lead to vine rot.

Full sun and fertile, friable loam are perfect for watermelon culture. Watermelon plants appreciate sharp drainage, so it is best to berm low mounds of soil for the vines. After the threat of frost has passed, plant as many as three seeds in each mound and keep the soil evenly moist but not wet (wet soil can induce seed rot). Once the small plants have emerged, keep them lightly moist and feed them regularly. Provide ample room for the plants to sprawl across the ground. The sheer weight and size of melons precludes growth of the vines on trellises.


  • AHS Heat Zone

    12 - 4

  • Sunset Zone

    A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type


  • Sun Exposure

    Full Sun

  • Height

    6"-12" / 15.2cm - 30.5cm

  • Width

    8'-10' / 2.4m - 3.0m

  • Bloom Time


  • Native To

    Hybrid Origin, Africa, Southern Africa

Growing Conditions

  • Soil pH


  • Soil Drainage

    Well Drained

  • Soil type


  • Growth Rate

    Very Fast

  • Water Requirements

    Average Water

  • Habit


  • Seasonal Interest

    Summer, Fall

Ornamental Features

  • Flower Interest


  • Flower Color


  • Fruit Color

    Red, Green, Crimson, Light Green, Dark Green

  • Fruit Color Modifier


  • Foliage Color (Spring)

    Green, Gray Green

  • Foliage Color (Summer)

    Green, Gray Green

  • Foliage Color (Fall)

    Green, Gray Green

  • Fragrant Flowers


  • Fragrant Fruit


  • Fragrant Foliage


  • Bark or Stem Fragrant


  • Flower Petal Number


  • Repeat Bloomer


  • Showy Fruit


  • Edible Fruit


  • Showy Foliage


  • Foliage Texture


  • Foliage Sheen


  • Evergreen


  • Showy Bark


Special Characteristics

  • Usage

    Edible, Fruit / Fruit Tree, Herb / Vegetable, Tropical, Vine

  • Sharp or Has Thorns


  • Invasive


  • Self-Sowing