U.S. Corporate Headquarters
3411 Silverside Road
Wilmington, DE 19810
Phone: (302) 425-2000

Syngenta Flowers
2280 Hecker Pass Hwy,
Gilroy, CA 95020
Phone: 1-408-847-7333
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Garst Seeds
2369 - 330th Street
Slater, IA 50224
Phone: 1-888-GO-GARST
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Golden Harvest Seeds
100 JC Robinson Blvd
PO Box 307
Waterloo, NE 68069
Phone: 1-800-228-9906
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HILLESHÖG
11939 Sugarmill Road
Longmont, CO 80501-9713
Phone: (303) 776-1802
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NK Seeds
11055 Wayzata Blvd.
Minnetonka, MN 55305
Phone: (612) 656- 8600
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Rogers Seeds
P.O. Box 4188
Boise, ID 83704 - 4188
Phone: (208) 322-7272
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Syngenta Bioline
PO Box 2430
Oxnard, CA 93034
Phone: (805) 986-8265
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Syngenta Biotechnology
PO Box 12257
Research Triangle Park
North Carolina 27709-2257
Phone: (919) 541-8500
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Syngenta Crop Protection
Headquarters
P.O. Box 18300
Greensboro, NC 27419
Phone: (336) 632-6000
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Syngenta Customer Center
P.O. Box 18300
Greensboro, NC 27419
Phone: 1-866-796-4368
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Syngenta Lawn & Garden
Headquarters
P.O. Box 18300
Greensboro, NC 27419
Phone: 1-866-796-4368
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Syngenta Seeds
Headquarters
11055 Wayzata Blvd.
Minnetonka, MN 55305
Phone: (612)656- 8600
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