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Blacktail Mountain Watermelon (70 Days)

5 reviews

If you have had a difficult time growing watermelons try this easy to grow variety. Perfect for first-time gardeners. 10” to 12” solid deep green rind with mouthwatering sweet red flesh. Vines up to 10’.  Developed in northern Idaho with the ability to ripen even in cooler climates. If you mulch it well at the start and give it adequate water, this variety can take care of itself.

20 seeds


Citrullus lanatus

Germination: 4-10 days

Germination Temperature: Optimum soil temperatures 70-85ºF

Seed Sowing Depth: 1/2" deep

Sowing Indoors: 3-4 weeks before last frost. Provide 70-85ºF soil temperature. Sow 2-3 seeds per cell/pot. Sowing into individual biodegradable peat/cow pots reduces root damage when transplanting. Transplant after last frost, 36-48" apart.

Sowing Outdoors: After last frost when soil temperature is over 70ºF. 

How much does a packet plant: 18-20 foot single row, 5-6 hills

Harvest: Look for the following signs as it does take some practice on telling when they are ready to harvest. The closest tendril to the stem dries, there is a crack in the stem that attaches the watermelon to the vine, where the watermelon touches the ground it should be a butter yellow color, give it a knock with your hands it should sound hollow, the skin is dull, and slipping of the stem from the melon with slight finger pressure.

Tips:  Plant in fertile soil, amended with compost or well rotted manure and keep well watered. They benefit from growing on black plastic and by using row covers for weed, insect control, and more rapid growth.

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Customer Reviews
4.8 Based on 5 Reviews
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Luann S.
United States United States
I recommend this product
Blacktail Mountain Watermelon (70 Days)

its growing fine didnt have and problems getting it to greminate thank u

Mike S.
United States United States
Looking great

Awesome plant

United States United States

I planted it last year and the watermelon was so sweet and thats why when i saw you had the seeds i purchased them. Here in wisconsin its hard to grow watermelons but this was a winner

Michael L.
United States

Overall The seeds are performing as expected They are planted in doors in pots and emerged at about 11 days will put them in green house tomorrow Elevation of garden is 7800 feetabove sea level Will be interesting to see results chose this variety because of the short time between planting and production in a good year we have maybe 75 days for growing season So far so good lots of things happening Just had a severe snow storm and temps below 20 F

Pinetree Garden Seeds Blacktail Mountain Watermelon (70 Days) Review
Jane W.
United States
I haven't tried it yet,

I haven't tried it yet, but will. It is too soon to plant this in my area.