Jubilee Improved Watermelon is an open-pollinated, heirloom that matures in 90 days. One of the most popular watermelons in the United States. Jubilee Improved Watermelon is a prolific producer under favorable conditions. Long melons with well-rounded, light green rind with darker green stripes. It is slightly grooved, hard and tough, about 3/4 inch thick and weighs 30-35 lbs. The flesh is very palatable, has an excellent texture and is uniformly bright red when ripe with stippled, large, black seeds. Plants grow vigorously in warm seasonal temperature. Has a wide range of adaptability. Excellent shipper. Tolerant to Wilt and Anthracnose.
How to grow Jubilee Improved Watermelon?
Jubilee Improved Watermelon plants have sparse leaves and need a lot of sunshine and heat to mature their fruit. The Jubilee Improved Watermelon plant roots are delicate and require high nutrition and lots of water. For all that effort, you’ll be rewarded by the ripest, sweetest watermelons you’ve ever tasted. Read through the handy and useful guide ‘How to Grow watermelon’ and grow refreshing flavorful watermleons this summer!
It is essential to start Jubilee Improved Watermelon seeds indoors or in a greenhouse mid to late April. Transplant at the end of May or first week of June, when the plants are 5 weeks old. Optimal soil temperature for germination: 20-25°C (68-77°F). Seeds should sprout in 5-10 days.
Sow Jubilee Improved Watermelon seeds ½” deep. Set transplants 24-36″ apart in rows 5-6′ apart.
Ideal pH: 6.0-6.8. Choose a warm, well-drained soil for Jubilee Improved Watermelon. Add dolomite lime and compost or well-rotted manure to the bed and ½-1 cup of complete organic fertilizer beneath each transplant. Watermelons need really warm growing conditions. Use black plastic mulch, cloches, or floating row covers. Success may improve in raised beds. Watermelons plants require 8-10 weeks of good, hot growing weather from the middle of June to the end of August. During that time, a melon vine must grow 5-9 leaves before starting to flower, then set 4 or more male flowers before making its first female flower, and then ripen its fruit before cool, damp weather sets in. Watermelons do not ripen off the vine. During the entire growing season, make sure to provide ample water.
Jubilee Improved Watermelon fruit will ripen in late August to early September. Watermelon is ripe when the tendril nearest to the fruit withers and dries up.
In ideal conditions at least 60% of Jubilee Improved Watermelon seeds will germinate. Usual seed life: 3 years. Per 100′ row: 60 seeds, per acre: 5.2M seeds.
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