Melons - Organic

Blacktail Mountain Watermelon Organic

Blacktail Mountain Watermelon Organic


70-75 days. Developed in Northern Idaho where summer nights dip into the 40s, we can attest to how well Blacktail Mountain performs at our cool trial ground. A consistently high producer of 9 inch round, dark green fruit with candy-sweet, red flesh. Also performs well in hot climates, making this a wonderful taste of summer for any gardener.

   Open Pollinated
Approximately 20-40 seeds per gram.
  • WA988/L
  • 1 gram Organic
  • $3.95

  • WA988/M
  • 7 grams Organic
  • $8.85

  • WA988/N
  • 1 oz Organic
  • $17.95
  • More Information
  • Customer Reviews (3)
Soil Temp for Germ.Days to EmergenceSeed DepthSoil Temp. for Trans.Plant SpacingRow SpacingMin. Germ.Seed LifeSeeds per 1/2 gramFertilizer Needs
70-85°F3-101/2"60°F3-4'5-6'80%3 years≈ 10-20High

Melons: Cucumis melo
Watermelons: Citrullus lanatus
The sweet succulence of summer-ripe melons is irresistibly tempting, but the health benefits of these luscious fruits shouldn't be overlooked. Look to red-fleshed melons to fortify the heart and urinary tract. Yellow and orange flesh types provide support to the immune system, heart and vision. Green-fleshed varieties promote strong bones and teeth as well as vision health. We've selected varieties that are successful in both southern and northern gardens.

Days to maturity are calculated from transplant date.

• Melons and watermelons perform best in fertile, well-drained soil with a pH of 6.0-7.0
• Apply 1/2 cup of TSC's Complete fertilizer and a shovelful of compost to each plant
• Watermelons are less tolerant of cool conditions than melons — the use of plastic mulch or floating row cover is highly recommended
• Monitor the temperature under the row covers on hot days, especially early in the season
• Remove covers prior to flowering for pollination

Direct Sowing
• Soil temperature is critical for good germination and only recommended in warmer climates

• Start indoors in 4 inch pots, 3-4 weeks before anticipated transplant date
• Grow the seedlings under dry, warm conditions
• Avoid letting starts get root bound; transplant carefully as to not disturb roots
• Fertilize seedlings with a balanced liquid fertilizer, such as Age Old Grow

Insects & Diseases
Common insects: Cucumber beetles
Insect control: Pyrethrin and row covers
Common diseases: Bacterial wilt and powdery mildew
Disease control: Greencure® or Zonix™
Disease prevention: 3-4 year crop rotation, avoid overhead watering

Harvest & Storage
• Cantaloupe will easily slip from vine when ripe
• With other melons, check the leaf where fruit is attached to the vine — fruit is mature when this leaf begins to yellow
• Watermelons are ready for harvest when the tendril closest to the fruit is dry and brown or when the bottom side of the fruit is yellow
• Melons and watermelons will not ripen off vine
• Pick in the cool of the day and chill quickly
• Melons: store at 40°F and 95% relative humidity
• Watermelons: store at 50-60°F and 85% relative humidity

A | Anthracnose
AB | Early (Alternaria) Blight
F* | Fusarium Wilt
PM* | Powdery Mildew
*Numbers indicate specific disease race.
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reliable in the willamette valley
May 22, 2016  |  By steve
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2016 is my fourth year of growing this melon. Each year they have buried us in great tasting melons. Watermelons are iffy here in the valley. This one is not.
Unripe in Willamette Valley
Oct 3, 2015  |  By Jim Dill
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If there was ever a season that this would ripen in Western Oregon this was it! But these did not do so. And produced only two per vine under ideal growing conditions.
Great Melon
Jun 17, 2014  |  By Valerie
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Reliable, productive, great flavor, holds well