Espoma Holly-Tone Acidifying Fertilizer NPK 4-3-4
Organic-mineral blend NPK 4-3-4 with sulfur for acid-loving plants, 18 lb bag but sold in 4kg retail packs. Under HTS 3105.90.00 for NPK in ≤10kg packages. Lowers soil pH for azaleas, rhododendrons.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If superphosphates with minor N/K
Phosphatic fertilizers dominate 3103.10 if P content exceeds per note 3.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Declare sulfur as non-fertilizing additive per Chapter notes
• APHIS permit if from regions with soil pathogens
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