How to contact us at GTG Hydroponics

Visit our retail store in the old United Christian Assembly church on the corner of Route 15 and Park Street in Underhill, Vermont. Click here for directions.

Call toll free in the US: 800.56.HYDRO (564.9376)
In Vermont: 802.899.4323
Fax: 802.899.1332

Mailing Address:
GTG Hydroponics
P.O. Box 235
Underhill, VT 05489
USA

Physical Address:
Green Thumb Gardening & Hydroponics
394 Rt 15
Jericho, VT 05465
USA

Store Hours:
Mon - Fri: 10am-6pm EST
Sat: 10am-5pm EST
Sun: Closed

Email us here