Free shipping on all orders in the continental US

Humboldts Secret Supplies
8650 Genesee Avenue STE 214 928612
San Diego, CA 92192
Customer Service:(858) 255-0576
Hours: 9am-5pm PST Monday-Friday

Grower Support
Email: or use the contact form below.

(858) 255-0576

We receive many requests everyday for free samples. Unfortunately, we will be unable to respond to all of these requests and ask that you look at our Starter Pack at this link.