Premier Northern California Sod Over The Past 30 Years Delta Bluegrass Company has worked to develop sod blends and varieties perfectly suited for the many applications and “micro climates” found in Northern and Central California. Contractors' Northern California Sod Choice Our Signature Product, Bolero™ Sod, stands out from other sod due to its Mediterranean origin. This distinction makes Bolero™ Sod ideally suited for Northern and Central California climates. Bolero™ Sod features a fine bluegrass like texture, uses less water, maintains rich green color all year round and is heat tolerant. We offer the best Northern California Sod & Central California Sod.