ABOUT BRIGGS NURSERY. Briggs Nursery is a wholesale grower and plant propagator that was founded in 1912 in Western Washington. Briggs has been expanding and developing a protocol for tissue culture since 1965 and is recognized as an international leader in micro-propagation. The nursery currently spans over 140 acres of production space in Elma, Washington. Our corporate philosophy, Quality that Grows, reflects our commitment to offering a wide ...