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