Radicle Seed was originally founded as T&C Supplies in 1985 as a reliable seed supplier for transplant nurseries in California and Florida. T&C also provided greenhouse parts, trays, fertilizer, and other supplies to offer complete solutions for its customers.

Under the leadership of owners Steve and Randy Costa, the company became more focused on seed sales directly to growers in California’s Salinas Valley and Central Valley. As business grew, the company hired additional field representatives to expand service to Bakersfield, the coastal regions, and the southern California and Arizona desert.

In 2013, the company was reborn as Radicle Seed, reflecting the company’s growth over time into a modern, full-service seed company. Radicle Seed is now a west coast leader in pepper, watermelon, spinach, lettuce and celery seed sales.