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The National Clean Plant Network for Sweetpotatoes (NCPN-Sweetpotatoes) is an association of clean plant centers, scientists, educators, state and federal regulators, certified seed growers, and commercial growers from the fresh market and processing industries concerned with the health of planting stock (seed roots and vine cuttings).  It formally joined the NCPN specialty crops network in 2015.  The network operates under the umbrella of the United States Department of Agriculture (USDA).


NCPN Testimonals


The cleaner the seed, the less virus you’ll have, and the more saleable product you’ll have.”

Matt Alvernaz, sweetpotato grower, packer, shipper,

Merced County, California


“Having clean healthy plants and seed has increased yield and pack-out for us and our customers. The clean seed program is a MUST HAVE for us to produce high quality and yield, to supply the growing demand for healthy great sweetpotatoes.”

sweet potato digging 021, Michael Garber

“The clean plant program has given our commercial production the economic confidence to increase all input levels in a constant effort to reach for greater financial returns per acre.”

Matthew Garber, Garber Farms,

Iota, Louisiana

Jim Jones, Jones Family Farms, North Carolina

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