Comparison: Best Alaska Fish Fertilizer Roses (Updated | Dec 1st)

Roses thrive on a balanced, low‑phosphorus formula, and most fish fertilizers for roses use a 5‑1‑1 ratio. This provides ample nitrogen for foliage growth while keeping phosphorus low to encourage strong blooms. The ratio also supplies a modest amount of potassium for overall plant health.

The 115 oz bottle is a ready‑to‑use liquid that’s convenient for regular feeding, while the 1‑gallon concentrate requires dilution before application. Both share the same 5‑1‑1 NPK and OMRI‑listed organic status, but the gallon offers a lower cost per ounce if you’re willing to mix it yourself. Choose the bottle for ease, or the gallon for bulk savings.

Most fish fertilizers have a mild, natural scent, but the Alaska Fish Emulsion concentrate is deodorized with natural wintergreen to reduce smell. Heirloom Roses Founder’s Fish Fertilizer also markets an “all‑natural” formula that is low‑odor. If you plan to use the product indoors or in close proximity to living spaces, the deodorized options are the safest choice.

OMRI (Organic Materials Review Institute) certification confirms that the product meets strict organic standards, which is important for gardeners who follow organic practices or have certification requirements. Both the Alaska 115 oz and the 32 oz 6‑pack are OMRI‑listed, guaranteeing they contain no prohibited synthetic chemicals. This gives peace of mind that your roses are fed with a truly organic amendment.

For extensive planting, the Alaska 6‑pack 32 oz (total 192 oz) provides the lowest price per ounce while still delivering the 5‑1‑1 formula and OMRI certification. The Central Garden Brands 1‑quart (32 oz) is also economical but lacks the bulk discount of the 6‑pack. If you need a larger quantity and want to minimize cost, the 6‑pack is the most value‑driven choice.

All listed fish fertilizers are formulated to be “won’t burn” when diluted according to the label directions, typically 1‑2 tablespoons per gallon of water. Applying the mixture during cooler parts of the day and watering the soil before and after feeding further reduces burn risk. Consistent, light applications are more beneficial than a single heavy dose.

Yes, every product in the list is suitable for both indoor and outdoor plants, making them ideal for container‑grown roses. Choose a low‑odor, deodorized formula like the Alaska 1‑gallon concentrate if you’re concerned about scent in indoor spaces. Just ensure proper drainage and avoid over‑watering to keep indoor roses healthy.