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Non-GMO
Easy to Grow
Heirloom

Missouri Heirloom Watermelon

Quick Facts:

  • Heirloom variety produces 15-20lb melons
  • Mottled, pale-green rinds
  • Productive and drought-resistant
  • Exceptionally sweet, golden yellow flesh
  • 90 days to harvest on homestead

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Quantity: Packet (25 Seeds)

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We ship to all areas of North America including the United States, its territories and outlying islands, and Canada. International orders may incur an additional charge to cover the handling of customs paperwork. Returns are accepted within 30 days of receipt. Full warranty information can be found here.

Missouri Heirloom Watermelon

More about Missouri Heirloom

Citrullus lanatus

Missouri Heirloom watermelon is an abundant producer of 15 to 20-pound yellow meated watermelons with mottled, pale-green rinds.  Missouri Heirloom is an excellent watermelon for beginner gardeners and those growing in challenging environments as the plants are drought resistant and very prolific under a wide variety of challenging conditions.  Plus, Missouri Heirloom produces a unique, golden yellow flesh that is exceptionally sweet and refreshing.  It is always a favorite on our homestead.  Approximately 90 days to harvest.  Each packet contains a minimum of 25 seeds.

Citrullus lanatus

Missouri Heirloom watermelon is an abundant producer of 15 to 20-pound yellow meated watermelons with mottled, pale-green rinds.  Missouri Heirloom is an excellent watermelon for beginner gardeners and those growing in challenging environments as the plants are drought resistant and very prolific under a wide variety of challenging conditions.  Plus, Missouri Heirloom produces a unique, golden yellow flesh that is exceptionally sweet and refreshing.  It is... read more

read less

Citrullus lanatus

Missouri Heirloom watermelon is an abundant producer of 15 to 20-pound yellow meated watermelons with mottled, pale-green rinds.  Missouri Heirloom is an excellent watermelon for beginner gardeners and those growing in challenging environments as the plants are drought resistant and very prolific under a wide variety of challenging conditions.  Plus, Missouri Heirloom produces a unique, golden yellow flesh that is exceptionally sweet and refreshing.  It is always a favorite on our homestead.  Approximately 90 days to harvest.  Each packet contains a minimum of 25 seeds.

Boy holding slice of watermelon
Kids eating watermelon

How to Grow Watermelon

Watermelons prefer well-draining soil with a pH between 6.0-7.0 and plenty of organic matter. The soil should be warm (at least 60°F) at planting time and the area should receive full sun for at least 6-8 hours per day. Watermelons are heavy feeders and require regular watering, especially during the fruiting stage. However, it's important not to overwater, as this can cause fruit to split and reduce flavor. Mulching around the base of the plants can help retain moisture and suppress weeds. It's also important to rotate watermelon crops every few years to prevent disease build-up in the soil.

Direct sow seeds outdoors 2 weeks after last frost, once soil temps have reached 70 degrees.  Sow 3-5 seeds per hill with 3 to 4 feet between hills and to 8 feet between rows.  Under ideal conditions germination will occur in 5-8 days. Alternatively, seeds can be sown indoors roughly 3-4 weeks before the last frost.

Transplant outdoors after danger of frost has passed. Make a mound of soil and transplant 2-3 plants into the "hill". Continue along in the row, spacing additional hills 2-3 feet apart. If planting multiple rows, space 8 feet apart.

Insect Pests

Watermelons can be affected by a range of insect pests, including aphids, cut worms, and cabbage loopers. Aphids can be controlled using insecticidal soap while cutworms and cabbage loopers can be controlled using biological controls such as Bacillus thuringiensis (Bt). Regular scouting and early detection can also help prevent serious damage.

Diseases & Other Problems

Watermelons can be affected by various diseases, including anthracnose, leaf blight, downy mildew, bacterial fruit blotch, fusarium wilt, and mosaic viruses (both watermelon and cucumber mosaic virus). Other problems include blossom-end rot and cracking due to uneven watering. It's important to rotate crops, practice tillage and/or remove debris at the end of the growing season to prevent disease buildup in the soil.

To harvest watermelon, wait for the tendril closest to the fruit to dry out and the skin to turn dull. Gently roll the melon to expose its underbelly, which will change from pale green or white to pale yellow. Cut the stem a few inches above the fruit and gently place it in a basket. To store watermelon, keep it in a cool, dry place for up to a week or in the fridge for up to two weeks. Cut watermelon should be wrapped in plastic and refrigerated for up to four days.

CONSIDERATIONS:

Watermelon is an outbreeding plant with male and female flowers present on different parts of the plant. Watermelon will cross pollinate with other varieties of watermelon, but will not cross with muskmelon, honeydew, cucamelon, or bitter melon. Isolate different varieties of watermelon by at least a half mile to ensure varietal purity. Alternatively, watermelon varieties may be caged with introduced pollinators. Hand-pollination of melons is relatively easy, but has a low success rate, even under ideal conditions.

HARVESTING SEED:

Wait until melons are fully mature. Harvest the melon and scoop the seeds and pulp into a bucket. Cover with netting or pantyhose and allow to ferment for 1 day to free the seeds from the pulp (this can also help eliminate bacterial fruit blotch). Spray a heavy stream of water into the bucket to mix the seeds and separate any remaining pulp. Pour off floating seeds and pulp. Repeat until the water runs clear. Pour seeds onto a screen or strainer to remove water, then spread flat on a screen or cookie sheet and place in a warm, well-ventilated place to finish drying.

SEED LONGETIVITY:

Watermelon seeds remain viable for 6 years when stored under ideal conditions.

Crimson Sweet Watermelon

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