Jugs of Sea-Plus and Neptune's harvest fertilizers alongside a flat of healthy green pepper seedlings.

Fertilizers & Amendments

11 Products
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A popular liquid fertilizer for organic growers.
Feed your plants with both fish and seaweed simultaneously.
A popular liquid fertilizer for organic growers.
Feed your plants with both fish and seaweed simultaneously.
A popular liquid fertilizer for organic growers.
Prevent fertilizer backflow into your drinking water.
Controls amount of fertilizer mixed with water. Holds 3/4 gallon.
Controls amount of fertilizer mixed with water. Holds 1 gallon.
Controls amount of fertilizer mixed with water. Holds 2.5 gallons.
For permanent inline connection to sprinkler & drip emitter systems.