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Whitwam Organics

Melon-Hime Kansen Ice Box Watermelon

Melon-Hime Kansen Ice Box Watermelon

Regular price $7.20 USD
Regular price Sale price $7.20 USD
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Seeds or Plants
Size
Quantity

Hime Kansen, Hybrid

Citrullus vulgaris

This Japanese icebox watermelon is the perfect size to fit in a fridge and has been a specialty for long time in Japan. It has firm dark red flesh and green skin with dark green stripes. It has an extremely thin rind (3/16") and excellent shipping ability. It has a high Brix count of 12.5-13 and weights 5-6 lbs. The fruit has a slightly oblong shape.
  • Warm season annual
  • 14,900 seed count per pound.
  • Maturity: Approx. 30-40 days after fruit setting
  • Planting season: Late spring to early summer
Prepare fertile, well-drained soil. Sow seeds in late spring/summer after last frost in a warm, sunny location. Soil temperatures below 50°F can slow growth. Consider using black plastic and fabric row covers to speed soil warming. Sandy or light-textured soils that warm quickly in spring are best. Sow 3 seeds per hill and space hills 3' apart. Harvest when fruit area touching ground turns yellow or when the tendril closest to the stem turns brown or dried. A mature watermelon will have a dull “plunk” sound when thumped.
     We usually advise to set the first fruit on the third female flower that appears between the 16th - 21st leaf node to get a better quality fruit. After you harvest the first fruit, another fruit could be harvested between the 32nd- 42nd leaf node if the plant could keep good enough plant vigor. Additional fertilizer must be applied, too.

Days to germination

 3-10 days

Days to maturity

About 80-85 days

Life cycle

Warm Season Annual

Plant time

Late spring to Early Summer

Spacing

72-96 inches

Sun

Full sun well drained Soil

Soil temperature

80-85 degrees

Optimum soil P.H

6.0-6.6

Height

6-10 feet

Harvest

80- 85 days after planting

Germination
Temperature
Seed
Depth
Row
Distance
80-85°F 1/2"

72-96"

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  • “All items arrived quickly and well packaged. I usually expect to have one or two live items out of a batch, but they are all thriving. I couldn’t be happier!”

    David L.
    August 2026
  • “My live plants were packed like they belonged in Ft Knox. 😂 They really were packed beautifully. Only one plant, a bee balm, is questionable but signs that it will recover are happening. All in all I am thrilled with my plants and seeds. Some of my coreopsis have already sprouted!”

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    September 2026
  • “Plants were ready quick at a good price with great packaging. Very happy with my purchase.”

    Will B.
    May 2026
  • “I’ve ordered seeds from Whitwam Organics 3 or 4 times now. I love the simple packaging, clear planting guidelines, and variety they offer. Great germination rates!! The bare root plants I’ve ordered have come healthy, so healthy that the wild rabbits always approve of my menu upgrades! 😂🐰”

    Chanda B.
    August 2026
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