Blacktail Mountain Watermelon, Heirloom Seeds

Blacktail Mountain Watermelon, Heirloom Seeds — The Idaho Icebox Heirloom That Sets the Standard for Flavor in Just 65 Days

Blacktail Mountain (Citrullus lanatus) was developed by Glenn Downs of the Sand Hill Preservation Center in Idaho in the cool summers of the 1970s — the quintessential icebox watermelon that sets the standard for flavor. Loaded with sweet red flesh, most famous for ripening in just 65 days. Excellent keeping quality — harvest just before ripe and melons will finish in storage, lasting up to two months. Outstanding yields.

Why Grow Blacktail Mountain?

• Sets the standard for icebox watermelon flavor — developed in Idaho’s cool summers
• Ready in just 65 days — one of the earliest watermelons available
• Excellent keeping quality — lasts up to two months in storage
• Harvest before ripe — finishes ripening off the vine
• Outstanding yields — reliable and productive
• Open-pollinated heirloom — save seed year after year

Growing Notes

Start indoors 3–4 weeks before last frost. Transplant outdoors after all frost danger has passed into warm soil in full sun. Space plants 3–4 feet apart. Water consistently. Harvest just before fully ripe — melons will finish in storage. Excellent for short-season and northern gardens.

Packed and shipped by Box Garden Seeds LLC — heirloom seeds grown without GMOs, selected for flavor, resilience, and your garden’s success.