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
Sunday 11-6pm
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
Sunday 11-6pm
+ Quick Look
$109.99
Algen Extract is a premium Norwegian Sea Kelp blend derived by way of “cold press”...
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$379.99
Algen Extract is a premium Norwegian Sea Kelp blend derived by way of “cold press”...
+ Quick Look
$71.99
Use House & Garden's Amino Treatment to provide specialized nutrients to the vegetative and flowering...
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$18.90
Use Aqua Flakes A/B to provide specialized nutrients in recirculating hydroponic applications.
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$87.99
House & Garden 1-Component Soil® is mineral nutrition for soils that are enriched with lime...
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$59.99
Use Bud-XL in the finishing weeks of flowering to improve the plants natural flavors in...
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Sold Out - $224.99
Use Bud-XL in the finishing weeks of flowering to improve the plants natural flavors in...
+ Quick Look
$23.99
Drip Clean keeps your mediums and hoses free of salt build up. Drip clean is...
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$59.99
Drip Clean keeps your mediums and hoses free of salt build up. Drip clean is...
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$32.99
Magic Green is a FOLIAR SPRAY used to increase vitality and ensure that the plants...
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$45.99
Use House & Garden's Multi Zen to encourage vigorous growth for rapidly growing plants.
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$169.99
Use House & Garden's Multi Zen to encourage vigorous growth for rapidly growing plants.
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$45.99
Use House & Garden’s Nitrogen Boost along with basic nutrients to provide additional levels of...
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$19.99
Use House & Garden’s Nitrogen Boost along with basic nutrients to provide additional levels of...
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$18.99
For the purpose of stabilizing Osmosis and rainwater.
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$56.99
Apply to all soil, peat and coco based mediums. Rhizo Force can help invigorate recycled...
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$36.99
For soil, coco, and peat applications. The world famous Roots Excelurator, with its well kept...
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$82.00
A granular slow-release product that enriches soil, coco and peat-based media with essential ingredients. Roots...
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$81.99
House & Garden's Roots Excelurator Silver is for use in Hydroponic and soil applications where...
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$12.95
Shooting Powder contains added levels of potassium and phosphorous to enhance the flowering cycle in...
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$18.90
Soil A&B provides balanced nutrition for enriched soils, and contains every essential nutrient, including a...
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$43.99
Use Soil A/B to provide specialized nutrients in soil medium applications.
+ Quick Look
$17.99
Soil A&B provides balanced nutrition for enriched soils, and contains every essential nutrient, including a...
+ Quick Look
$46.20
Soil A&B provides balanced nutrition for enriched soils, and contains every essential nutrient, including a...
+ Quick Look
$33.99
Top Booster provides nutrients needed for ripening and helps set the stage for Bud-XL and...
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$13.99
Top Booster provides nutrients needed for ripening and helps set the stage for Bud-XL and...
+ Quick Look
$21.99
Top Booster provides nutrients needed for ripening and helps set the stage for Bud-XL and...
+ Quick Look
$107.99
Top Booster contains added levels of potassium and phosphorous to enhance the flowering cycle in...
+ Quick Look
$223.99
Top Shooter is the liquid version of Shooting Powder for growers that prefer liquids to...
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$69.99
Top Shooter is the liquid version of Shooting Powder for growers that prefer liquids to...
+ Quick Look
$125.99
Top Shooter is the liquid version of Shooting Powder for growers that prefer liquids to...
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 ;
11am-5pm Sundays
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