Lawn & Garden
US Contacts

Syngenta U.S. business divisions include Seeds and Crop Protection.

US Locations Map
Click here to view a map of our US locations.
Global Headquarters
Syngenta International AG
P.O. Box
CH-4002 Basel
Switzerland
Phone: +41 61 323 11 11

View All Global Locations
Syngenta US Locations
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
More Contacts

Garst Seeds
2369 - 330th Street
Slater, IA 50224
Phone: 1-888-GO-GARST
More Contacts

Golden Harvest Seeds
100 JC Robinson Blvd
PO Box 307
Waterloo, NE 68069
Phone: 1-800-228-9906
More Contacts

HILLESHÖG
11939 Sugarmill Road
Longmont, CO 80501-9713
Phone: (303) 776-1802
More Contacts

NK Seeds
11055 Wayzata Blvd.
Minnetonka, MN 55305
Phone: (612) 656- 8600
More Contacts

Syngenta Vegetables - Boise Location
600 North Armstrong Place,
Boise, Idaho 83704
Phone: (208) 322-7272
More Contacts
Syngenta Bioline
PO Box 2430
Oxnard, CA 93034
Phone: (805) 986-8265
More Contacts

Syngenta Biotechnology
PO Box 12257
Research Triangle Park
North Carolina 27709-2257
Phone: (919) 541-8500
More Contacts

Syngenta Crop Protection
Headquarters
P.O. Box 18300
Greensboro, NC 27419
Phone: (336) 632-6000
More Contacts

Syngenta Customer Center
P.O. Box 18300
Greensboro, NC 27419
Phone: 1-866-796-4368
More Contacts

Syngenta Lawn & Garden
Headquarters
P.O. Box 18300
Greensboro, NC 27419
Phone: 1-866-796-4368
More Contacts

Syngenta Lettuce Company
2330 A Street, Unit B
Santa Maria, CA 93455
Phone: 1-805-922-4624

1147 Madison Lane
Salinas, CA 93907
Phone: 1-831-422-8500

Syngenta Seeds
Headquarters
11055 Wayzata Blvd.
Minnetonka, MN 55305
Phone: (612)656- 8600
More Contacts