Explore more on it. Also question is, how often should I use fish fertilizer?
Use a weak solution of 1 teaspoon per gallon when transplanting seedlings or bedding plants into the garden. Apply diluted fish emulsion to outdoor plants, including container plants, every three to four weeks throughout the growing season -- generally from spring to late summer or early autumn.
One may also ask, is fish fertilizer good for all plants? As fish fertilizer improves soil health, it also increases soil fertility by providing the primary nutrients necessary for plants to thrive. Fish fertilizers offer a source of burn-free nitrogen, along with the other primary nutrients of phosphorus and potassium.
Keeping this in consideration, do plant fertilizers expire?
The general answer is no, fertilizer does not go bad if it is properly stored. Liquid fertilizers can have a shelf life between 8-10 years if stored properly (refer to expiration date on product label or contact the manufacturer for more details since all products vary).
Can you use too much fish fertilizer?
Be careful when applying too much of it, though. If your soil already contains too much nitrogen, applying too much fish emulsion can cause nitrogen "burn" and affect growth.