Humboldt Hydroponics

06/19/2025

Royal Gold Kings Mix is great for all purposes! 🐬

04/10/2025

Azos is a very fine N fixing additive that helps your plants uptake that glorious springtime nitrogen. Come in for a discount on some for your early garden shoots. 1302 Union St Eureka. (707) 443-4304

01/01/2025

Humboldt Hydroponics is closed today, 1/1/24, but will be open tomorrow 1/2/24

12/07/2024

https://www.facebook.com/100063829458787/posts/992605069543799/?fs=e&mibextid=0NULKw&fs=e&s=TIeQ9V

We also sell e-bikes!

Tool-Free Assembly

12/03/2024

Anything in a 5 Gallon Container is 40% off this week. Come through and ask for the discount. 1302 Union St. (707)443-4304

11/29/2024

Open for business today on Black Friday. Come in for an extra discount if you mention this post! Black Friday deals!

11/28/2024

Humboldt Hydroponics will be closed today, Thanksgiving 2024, but we will reopen tomorrow, Black Friday. Come in for a discount tomorrow. Happy Thanksgiving!

11/12/2024

99% alcohol on sale now!

11/11/2024

Grodan Plant start A-ok rock wool slabs are a Great Way to get your clones and from seed plant starts going! In stock and on sale at Humboldt Hydroponics Eureka.

11/10/2024

Cutting Edge Solutions shelf on point. Louder Powder, 3-part, Sugaree, Sour D, supplements. Come get some of the solution! In Eureka by the movie theater.

09/07/2024

! Yes, the store is open today. Otherwise stop by our booth and say hi.