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Watermelon, Heirloom (Jubilee Improved)

$2.39 $1.20 50% off Botanical Interests and Lake Valley Seeds


Item # 051178039156

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Our inventory numbers are constantly fluctuating. Please call the Garden Center for more info at (970) 484-5022.


Lake Valley Jubilee Improved Heirloom Watermelon Seeds

Large, elongated melons with sweet, juicy red flesh weigh up to 35 lbs. each. The perfect companion for summer picnics! Keep plants evenly moist throughout the growing season for best production. Allow enough space in your garden for watermelon vines to stretch!

Sowing Information:

  • Light: Full sun
  • When to Start Inside: Start indoors three weeks before last spring frost date. Do not disturb tender roots when transplanting.
  • When to Sow Outside: Start outdoors about two weeks after the last spring frost, when soil has completely warmed.
  • Seed Depth: Plant seeds ½ inch deep.
  • Seed Spacing: 2–3 seeds per mound, 4-6 feet apart. 
  • Thinning: When 3 leaves, thin to 1 plant per mound
  • Days to Germinate: 7-15 days
  • Days to Maturity: 95 days

Growing Notes:

  • Harvesting: It can be tricky to know exactly when a watermelon is ripe and ready to pick. First, know the number of "days to harvest" and begin checking fruits as the harvest date draws closer. Signs to look for are: (1) the bottom of the melon (where it lies on the soil) turns from light green to a yellowish color; (2) the surface color of the fruit turns dull; (3) the skin becomes resistant to penetration by the thumbnail and is rough to the touch; and (4) light green, curly tendril on the stem near the point of attachment of the melon is brown and dry. All of these indicators may not necessarily occur at the same time.
  • Attributes: Large, elongated melons with sweet, juicy red flesh weigh up to 35 lbs. each.



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