We are Washington, D.C's premier location for all of your horticultural needs.
Located at 3744 10 St. NE, Washington, D.C. ; 20017
Call us at 202-248-2483.
Open 7 days a week Mon-Fri 11-7pm
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General Hydroponics® pH Control Kit contains 8 oz pH UP, 8 oz pH DOWN, 1...
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The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper...
This Base solution is formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at...
3744 10th St NE, Washington DCCapital City Organics202-248-2483Get Directions
Capital City Hydronics is now closed.We want to thank all of our customers for their support and invite you to our main location.
11am-7pm Mon-Sat ;
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