History of Hermiston watermelons
From early irrigated agriculture in the Umatilla Basin to a city logo on the water tower — how a niche crop became a Northwest icon.
Early agriculture in the Umatilla Basin
Hermiston was platted in 1907, named after the unfinished Robert Louis Stevenson novel Weir of Hermiston. Federal reclamation and Columbia River irrigation projects soon transformed arid bench land into productive farmland. Newspaper archives show Hermiston watermelons were regionally known as early as the 1910s — marketed beyond the immediate area while onions, potatoes, wheat, and alfalfa dominated local acreage.
Farmers found that melons thrived in the basin's sandy soils and long summer days. Production grew through the mid-20th century as packing and highway infrastructure improved, connecting Eastern Oregon to Portland, Seattle, and inland markets.
The 1960s — putting Hermiston on the map
The modern brand story begins with Mayor Frank Harkenrider in the early 1960s. Looking for a distinctive way to promote Hermiston — potatoes and alfalfa were important but not memorable — he loaded pickup trucks with local watermelons and drove them to Portland Mayor Bud Clark.
The gesture repeated for several years. Portland media covered the deliveries; consumers associated Hermiston with sweet red melons. Seed-spitting contests at the Umatilla County Fair became part of the rivalry. Hermiston was no longer just a railroad stop in Eastern Oregon — it was watermelon country.
Generations of growers
Families like the Walchlis have grown and shipped Hermiston watermelons for more than 50 years. Production passed from one generation to the next — knowledge of planting dates, irrigation timing, and harvest maturity is as much a local tradition as the fruit itself.
Umatilla County has typically supported about five major commercial growers and several smaller farms on roughly 750 acres — a niche compared to national production centers in Florida, Georgia, Texas, and California, but significant for regional identity and summer employment.
Research and extension
The Hermiston Agricultural Research and Extension Center — part of Oregon State University — has long supported irrigated crop research in the basin. Horticulturists have documented varietal performance, soil management, and production economics that help local growers stay competitive despite Oregon's smaller scale versus Sun Belt states.
Community celebrations
The Umatilla County Fair each August features watermelon traditions including seed-spitting contests. Downtown Hermiston hosts MelonFest with events like watermelon bathtub races, costume contests, and community gatherings that reinforce the brand for residents and visitors alike.
City officials have occasionally renewed the Portland watermelon exchange as a goodwill gesture — keeping alive the promotional spirit Harkenrider started more than six decades ago.
Hermiston watermelons today
Modern precision agriculture, improved varieties, and established distributor relationships have expanded Northwest retail placement. Shoppers from British Columbia to the Bay Area may see Hermiston-labeled melons in season. The crop remains a point of pride rather than the county's largest revenue driver — and that is precisely why it works as a brand.
Continue exploring: why the melons taste different, when to buy them, or the upcoming grower directory.