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PlantFiles: Watermelon
Citrullus lanatus 'Blacktail Mountain'

Family: Cucurbitaceae (koo-ker-bih-TAY-see-ee) (Info)
Genus: Citrullus (SIT-ruh-lus) (Info)
Species: lanatus (la-NA-tus) (Info)
Cultivar: Blacktail Mountain

» View all varieties of Melons

10 members have or want this plant for trade.


36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Sun Exposure:
Full Sun

Bloom Color:
Bright Yellow

Days to Maturity:
Unknown - Tell us

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Propagation Methods:
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Remove fleshy coating on seeds before storing
Allow unblemished fruit to ripen; clean and dry seeds
Ferment seeds before storing

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to view:

By PurplePansies
Thumbnail #1 of Citrullus lanatus by PurplePansies

By JerseyGardener1
Thumbnail #2 of Citrullus lanatus by JerseyGardener1

By aries44
Thumbnail #3 of Citrullus lanatus by aries44

By aries44
Thumbnail #4 of Citrullus lanatus by aries44


1 positive
2 neutrals
No negatives

Gardeners' Notes:

Neutral berrygirl On Mar 3, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

History: Developed by SSE member Glenn Drowns. He developed it when he lived in northern Idaho, where summer nights average 43 degrees!! SSE says it also does well in hot humid areas.

Positive JerseyGardener1 On Aug 2, 2005, JerseyGardener1 from Deal, NJ wrote:

Blacktail mountain is an extra early watermelon develops in Iowa USA by Glenn Drowns .... called "blacktail" because the seeds have a black marking at one end different from other watermelon seeds thus the "black tail". It is a small to medium sized (8-12 pounds) watermelon with standard pink flesh and dark green soild rind. It is one of the earliest watermelons in existence.... certainly one of the earliest heirlooms it ripens in (about) 70 days.

Neutral PurplePansies On Jul 2, 2005, PurplePansies from Deal, NJ (Zone 7a) wrote:

Blacktail mountain is an heirloom cultivar from the United States. It is supposed to be a smaller watermelon with good flavor. It is supposed to be early ripening. The name comes from the seeds which have characterisitc black "tails" or bumps on the ends. I am currently growing this variety so will not give rating untill harvest.


This plant has been said to grow in the following regions:

Glendale, Arizona
Tucson, Arizona
Mountain View, California
Miami, Florida
Wilsonville, Oregon
Marysville, Washington

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